diff --git a/Marlin/src/HAL/AVR/HAL.h b/Marlin/src/HAL/AVR/HAL.h
index 7d5e1000d7..3c883b645c 100644
--- a/Marlin/src/HAL/AVR/HAL.h
+++ b/Marlin/src/HAL/AVR/HAL.h
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/AVR/timers.h b/Marlin/src/HAL/AVR/timers.h
index d9cdfc4f01..94b17f3102 100644
--- a/Marlin/src/HAL/AVR/timers.h
+++ b/Marlin/src/HAL/AVR/timers.h
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/HAL.cpp b/Marlin/src/HAL/DUE/HAL.cpp
index 1b57bdb2fa..763091cb00 100644
--- a/Marlin/src/HAL/DUE/HAL.cpp
+++ b/Marlin/src/HAL/DUE/HAL.cpp
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/HAL.h b/Marlin/src/HAL/DUE/HAL.h
index 7b9285488f..49a8be3fe7 100644
--- a/Marlin/src/HAL/DUE/HAL.h
+++ b/Marlin/src/HAL/DUE/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/eeprom_flash.cpp b/Marlin/src/HAL/DUE/eeprom_flash.cpp
index 607764155b..a0ed6cc843 100644
--- a/Marlin/src/HAL/DUE/eeprom_flash.cpp
+++ b/Marlin/src/HAL/DUE/eeprom_flash.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/eeprom_wired.cpp b/Marlin/src/HAL/DUE/eeprom_wired.cpp
index 557a2f2cff..24f8c06d2e 100644
--- a/Marlin/src/HAL/DUE/eeprom_wired.cpp
+++ b/Marlin/src/HAL/DUE/eeprom_wired.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/timers.cpp b/Marlin/src/HAL/DUE/timers.cpp
index e5647817b6..e388255c08 100644
--- a/Marlin/src/HAL/DUE/timers.cpp
+++ b/Marlin/src/HAL/DUE/timers.cpp
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/DUE/timers.h b/Marlin/src/HAL/DUE/timers.h
index dc35c77e63..db5d83a06f 100644
--- a/Marlin/src/HAL/DUE/timers.h
+++ b/Marlin/src/HAL/DUE/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/ESP32/HAL.h b/Marlin/src/HAL/ESP32/HAL.h
index 97ed4d1e4f..0acb3676a2 100644
--- a/Marlin/src/HAL/ESP32/HAL.h
+++ b/Marlin/src/HAL/ESP32/HAL.h
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/ESP32/HAL_SPI.cpp b/Marlin/src/HAL/ESP32/HAL_SPI.cpp
index 6dc540864e..e5302bb905 100644
--- a/Marlin/src/HAL/ESP32/HAL_SPI.cpp
+++ b/Marlin/src/HAL/ESP32/HAL_SPI.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/ESP32/ota.cpp b/Marlin/src/HAL/ESP32/ota.cpp
index c5c3082c30..01f5924871 100644
--- a/Marlin/src/HAL/ESP32/ota.cpp
+++ b/Marlin/src/HAL/ESP32/ota.cpp
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/ESP32/ota.h b/Marlin/src/HAL/ESP32/ota.h
index 546ace82db..a91d04dbb7 100644
--- a/Marlin/src/HAL/ESP32/ota.h
+++ b/Marlin/src/HAL/ESP32/ota.h
@@ -1,7 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LINUX/HAL.h b/Marlin/src/HAL/LINUX/HAL.h
index d1c0cbe7ae..e84516d4dc 100644
--- a/Marlin/src/HAL/LINUX/HAL.h
+++ b/Marlin/src/HAL/LINUX/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LINUX/timers.cpp b/Marlin/src/HAL/LINUX/timers.cpp
index 66d80f2518..a8ab403197 100644
--- a/Marlin/src/HAL/LINUX/timers.cpp
+++ b/Marlin/src/HAL/LINUX/timers.cpp
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LINUX/timers.h b/Marlin/src/HAL/LINUX/timers.h
index 2d2a95774c..2b29edce0b 100644
--- a/Marlin/src/HAL/LINUX/timers.h
+++ b/Marlin/src/HAL/LINUX/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LPC1768/HAL.h b/Marlin/src/HAL/LPC1768/HAL.h
index c9b7a07394..ab28e06eb8 100644
--- a/Marlin/src/HAL/LPC1768/HAL.h
+++ b/Marlin/src/HAL/LPC1768/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LPC1768/timers.cpp b/Marlin/src/HAL/LPC1768/timers.cpp
index bbb13f81da..b541ab6e6a 100644
--- a/Marlin/src/HAL/LPC1768/timers.cpp
+++ b/Marlin/src/HAL/LPC1768/timers.cpp
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/LPC1768/timers.h b/Marlin/src/HAL/LPC1768/timers.h
index c6d7bc632e..bae01703ed 100644
--- a/Marlin/src/HAL/LPC1768/timers.h
+++ b/Marlin/src/HAL/LPC1768/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/NATIVE_SIM/HAL.h b/Marlin/src/HAL/NATIVE_SIM/HAL.h
index 58f084af85..8e88e50230 100644
--- a/Marlin/src/HAL/NATIVE_SIM/HAL.h
+++ b/Marlin/src/HAL/NATIVE_SIM/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/NATIVE_SIM/MarlinSPI.h b/Marlin/src/HAL/NATIVE_SIM/MarlinSPI.h
index b5cc6f02a4..0c447ba4cb 100644
--- a/Marlin/src/HAL/NATIVE_SIM/MarlinSPI.h
+++ b/Marlin/src/HAL/NATIVE_SIM/MarlinSPI.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/NATIVE_SIM/pinsDebug.cpp b/Marlin/src/HAL/NATIVE_SIM/pinsDebug.cpp
index e75826c58a..c4d56c6c21 100644
--- a/Marlin/src/HAL/NATIVE_SIM/pinsDebug.cpp
+++ b/Marlin/src/HAL/NATIVE_SIM/pinsDebug.cpp
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/HAL/NATIVE_SIM/pinsDebug.h b/Marlin/src/HAL/NATIVE_SIM/pinsDebug.h
index 28821acbd0..3321d1484d 100644
--- a/Marlin/src/HAL/NATIVE_SIM/pinsDebug.h
+++ b/Marlin/src/HAL/NATIVE_SIM/pinsDebug.h
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/HAL/NATIVE_SIM/tft/xpt2046.h b/Marlin/src/HAL/NATIVE_SIM/tft/xpt2046.h
index 43a0791e0a..d37f74c774 100644
--- a/Marlin/src/HAL/NATIVE_SIM/tft/xpt2046.h
+++ b/Marlin/src/HAL/NATIVE_SIM/tft/xpt2046.h
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/HAL/NATIVE_SIM/timers.h b/Marlin/src/HAL/NATIVE_SIM/timers.h
index be38d583b6..d46e8e7b94 100644
--- a/Marlin/src/HAL/NATIVE_SIM/timers.h
+++ b/Marlin/src/HAL/NATIVE_SIM/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/SAMD21/inc/Conditionals_LCD.h b/Marlin/src/HAL/SAMD21/inc/Conditionals_LCD.h
index 9d58e45432..570baf7e95 100644
--- a/Marlin/src/HAL/SAMD21/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/SAMD21/inc/Conditionals_LCD.h
@@ -19,5 +19,4 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
diff --git a/Marlin/src/HAL/STM32/HAL.cpp b/Marlin/src/HAL/STM32/HAL.cpp
index ce49f27a8e..610bd0b243 100644
--- a/Marlin/src/HAL/STM32/HAL.cpp
+++ b/Marlin/src/HAL/STM32/HAL.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/HAL.h b/Marlin/src/HAL/STM32/HAL.h
index 37a718b08d..b3430f3339 100644
--- a/Marlin/src/HAL/STM32/HAL.h
+++ b/Marlin/src/HAL/STM32/HAL.h
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/HAL_SPI.cpp b/Marlin/src/HAL/STM32/HAL_SPI.cpp
index 278d209c47..cc035ecffa 100644
--- a/Marlin/src/HAL/STM32/HAL_SPI.cpp
+++ b/Marlin/src/HAL/STM32/HAL_SPI.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/MinSerial.cpp b/Marlin/src/HAL/STM32/MinSerial.cpp
index 4f2033299a..a27bc35a14 100644
--- a/Marlin/src/HAL/STM32/MinSerial.cpp
+++ b/Marlin/src/HAL/STM32/MinSerial.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/Servo.cpp b/Marlin/src/HAL/STM32/Servo.cpp
index a00186e0e7..4f026ffc6d 100644
--- a/Marlin/src/HAL/STM32/Servo.cpp
+++ b/Marlin/src/HAL/STM32/Servo.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/Servo.h b/Marlin/src/HAL/STM32/Servo.h
index 1527e753b6..95ecb5d977 100644
--- a/Marlin/src/HAL/STM32/Servo.h
+++ b/Marlin/src/HAL/STM32/Servo.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/eeprom_flash.cpp b/Marlin/src/HAL/STM32/eeprom_flash.cpp
index 6bd519877d..69511c6de4 100644
--- a/Marlin/src/HAL/STM32/eeprom_flash.cpp
+++ b/Marlin/src/HAL/STM32/eeprom_flash.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/eeprom_sram.cpp b/Marlin/src/HAL/STM32/eeprom_sram.cpp
index 687e7f55c2..9bd84ff4fe 100644
--- a/Marlin/src/HAL/STM32/eeprom_sram.cpp
+++ b/Marlin/src/HAL/STM32/eeprom_sram.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/eeprom_wired.cpp b/Marlin/src/HAL/STM32/eeprom_wired.cpp
index cf0468151e..6fb9d9b51b 100644
--- a/Marlin/src/HAL/STM32/eeprom_wired.cpp
+++ b/Marlin/src/HAL/STM32/eeprom_wired.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/endstop_interrupts.h b/Marlin/src/HAL/STM32/endstop_interrupts.h
index 0c92053d42..ab86bf29c2 100644
--- a/Marlin/src/HAL/STM32/endstop_interrupts.h
+++ b/Marlin/src/HAL/STM32/endstop_interrupts.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/fastio.cpp b/Marlin/src/HAL/STM32/fastio.cpp
index a4b3ba70c9..f8501545a0 100644
--- a/Marlin/src/HAL/STM32/fastio.cpp
+++ b/Marlin/src/HAL/STM32/fastio.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/fastio.h b/Marlin/src/HAL/STM32/fastio.h
index 4a48954471..af2941c49c 100644
--- a/Marlin/src/HAL/STM32/fastio.h
+++ b/Marlin/src/HAL/STM32/fastio.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/msc_sd.cpp b/Marlin/src/HAL/STM32/msc_sd.cpp
index d7652abdc2..5c8bee9c62 100644
--- a/Marlin/src/HAL/STM32/msc_sd.cpp
+++ b/Marlin/src/HAL/STM32/msc_sd.cpp
@@ -1,14 +1,21 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
diff --git a/Marlin/src/HAL/STM32/msc_sd.h b/Marlin/src/HAL/STM32/msc_sd.h
index a8e5349f7c..20e738223c 100644
--- a/Marlin/src/HAL/STM32/msc_sd.h
+++ b/Marlin/src/HAL/STM32/msc_sd.h
@@ -1,14 +1,21 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
diff --git a/Marlin/src/HAL/STM32/timers.cpp b/Marlin/src/HAL/STM32/timers.cpp
index 54506cb451..10e0dc43a4 100644
--- a/Marlin/src/HAL/STM32/timers.cpp
+++ b/Marlin/src/HAL/STM32/timers.cpp
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32/timers.h b/Marlin/src/HAL/STM32/timers.h
index 6828998198..180e240314 100644
--- a/Marlin/src/HAL/STM32/timers.h
+++ b/Marlin/src/HAL/STM32/timers.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/HAL.cpp b/Marlin/src/HAL/STM32F1/HAL.cpp
index 373116ba39..a83c3a23bf 100644
--- a/Marlin/src/HAL/STM32F1/HAL.cpp
+++ b/Marlin/src/HAL/STM32F1/HAL.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/HAL.h b/Marlin/src/HAL/STM32F1/HAL.h
index a6f8036906..c4b90db68a 100644
--- a/Marlin/src/HAL/STM32F1/HAL.h
+++ b/Marlin/src/HAL/STM32F1/HAL.h
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/HAL_SPI.cpp b/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
index abb348d743..b5b57536f3 100644
--- a/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
+++ b/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/MinSerial.cpp b/Marlin/src/HAL/STM32F1/MinSerial.cpp
index 6cf68d8d8f..8fb9133254 100644
--- a/Marlin/src/HAL/STM32F1/MinSerial.cpp
+++ b/Marlin/src/HAL/STM32F1/MinSerial.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/Servo.cpp b/Marlin/src/HAL/STM32F1/Servo.cpp
index 47ffb631cf..7aa8fe3d00 100644
--- a/Marlin/src/HAL/STM32F1/Servo.cpp
+++ b/Marlin/src/HAL/STM32F1/Servo.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/Servo.h b/Marlin/src/HAL/STM32F1/Servo.h
index 745a1c93f0..ffafc23833 100644
--- a/Marlin/src/HAL/STM32F1/Servo.h
+++ b/Marlin/src/HAL/STM32F1/Servo.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/eeprom_flash.cpp b/Marlin/src/HAL/STM32F1/eeprom_flash.cpp
index e7d9dd29e2..48fb2d286c 100644
--- a/Marlin/src/HAL/STM32F1/eeprom_flash.cpp
+++ b/Marlin/src/HAL/STM32F1/eeprom_flash.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/endstop_interrupts.h b/Marlin/src/HAL/STM32F1/endstop_interrupts.h
index 6ed920183b..d11b3bf505 100644
--- a/Marlin/src/HAL/STM32F1/endstop_interrupts.h
+++ b/Marlin/src/HAL/STM32F1/endstop_interrupts.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/fastio.h b/Marlin/src/HAL/STM32F1/fastio.h
index e75254d692..5b3ebaa52c 100644
--- a/Marlin/src/HAL/STM32F1/fastio.h
+++ b/Marlin/src/HAL/STM32F1/fastio.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/msc_sd.cpp b/Marlin/src/HAL/STM32F1/msc_sd.cpp
index f490c83ed8..067b46eb8b 100644
--- a/Marlin/src/HAL/STM32F1/msc_sd.cpp
+++ b/Marlin/src/HAL/STM32F1/msc_sd.cpp
@@ -1,14 +1,21 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
diff --git a/Marlin/src/HAL/STM32F1/msc_sd.h b/Marlin/src/HAL/STM32F1/msc_sd.h
index f4636bdff7..371211efc6 100644
--- a/Marlin/src/HAL/STM32F1/msc_sd.h
+++ b/Marlin/src/HAL/STM32F1/msc_sd.h
@@ -1,14 +1,21 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
diff --git a/Marlin/src/HAL/STM32F1/onboard_sd.cpp b/Marlin/src/HAL/STM32F1/onboard_sd.cpp
index a3d8dcb2d5..df5549217d 100644
--- a/Marlin/src/HAL/STM32F1/onboard_sd.cpp
+++ b/Marlin/src/HAL/STM32F1/onboard_sd.cpp
@@ -5,6 +5,9 @@
  * Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
  * Copyright (C) 2015, ChaN, all right reserved.
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This software is a free software and there is NO WARRANTY.
  * No restriction on use. You can use, modify and redistribute it for
  * personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
diff --git a/Marlin/src/HAL/STM32F1/sdio.cpp b/Marlin/src/HAL/STM32F1/sdio.cpp
index 1ab76440b7..23f984eff3 100644
--- a/Marlin/src/HAL/STM32F1/sdio.cpp
+++ b/Marlin/src/HAL/STM32F1/sdio.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/sdio.h b/Marlin/src/HAL/STM32F1/sdio.h
index 8777299f01..2371601e99 100644
--- a/Marlin/src/HAL/STM32F1/sdio.h
+++ b/Marlin/src/HAL/STM32F1/sdio.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/timers.cpp b/Marlin/src/HAL/STM32F1/timers.cpp
index 112c730b9a..12477a4583 100644
--- a/Marlin/src/HAL/STM32F1/timers.cpp
+++ b/Marlin/src/HAL/STM32F1/timers.cpp
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/STM32F1/timers.h b/Marlin/src/HAL/STM32F1/timers.h
index 557522f336..f92c32c2a3 100644
--- a/Marlin/src/HAL/STM32F1/timers.h
+++ b/Marlin/src/HAL/STM32F1/timers.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2017 Victor Perez
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY31_32/HAL.h b/Marlin/src/HAL/TEENSY31_32/HAL.h
index fe913ed583..16594c16a8 100644
--- a/Marlin/src/HAL/TEENSY31_32/HAL.h
+++ b/Marlin/src/HAL/TEENSY31_32/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY35_36/HAL.h b/Marlin/src/HAL/TEENSY35_36/HAL.h
index 24dcf2ebab..6921334003 100644
--- a/Marlin/src/HAL/TEENSY35_36/HAL.h
+++ b/Marlin/src/HAL/TEENSY35_36/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY35_36/eeprom.cpp b/Marlin/src/HAL/TEENSY35_36/eeprom.cpp
index b80e93b536..a2afa45343 100644
--- a/Marlin/src/HAL/TEENSY35_36/eeprom.cpp
+++ b/Marlin/src/HAL/TEENSY35_36/eeprom.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY35_36/timers.h b/Marlin/src/HAL/TEENSY35_36/timers.h
index 8af79d7392..3536b62265 100644
--- a/Marlin/src/HAL/TEENSY35_36/timers.h
+++ b/Marlin/src/HAL/TEENSY35_36/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY40_41/HAL.h b/Marlin/src/HAL/TEENSY40_41/HAL.h
index ddda9be65f..fa5971a681 100644
--- a/Marlin/src/HAL/TEENSY40_41/HAL.h
+++ b/Marlin/src/HAL/TEENSY40_41/HAL.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY40_41/eeprom.cpp b/Marlin/src/HAL/TEENSY40_41/eeprom.cpp
index 3cd376edce..87f7dd3cfc 100644
--- a/Marlin/src/HAL/TEENSY40_41/eeprom.cpp
+++ b/Marlin/src/HAL/TEENSY40_41/eeprom.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY40_41/fastio.h b/Marlin/src/HAL/TEENSY40_41/fastio.h
index 52f991dfb8..179f044c9b 100644
--- a/Marlin/src/HAL/TEENSY40_41/fastio.h
+++ b/Marlin/src/HAL/TEENSY40_41/fastio.h
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/TEENSY40_41/timers.h b/Marlin/src/HAL/TEENSY40_41/timers.h
index 77fe0953d3..3c7cda0b4e 100644
--- a/Marlin/src/HAL/TEENSY40_41/timers.h
+++ b/Marlin/src/HAL/TEENSY40_41/timers.h
@@ -1,8 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp b/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
index 3c514f58a9..d478255678 100644
--- a/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
+++ b/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
@@ -4,7 +4,6 @@
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2020 Cyril Russo
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/shared/eeprom_api.cpp b/Marlin/src/HAL/shared/eeprom_api.cpp
index 083ccc70d7..62a8f2afbc 100644
--- a/Marlin/src/HAL/shared/eeprom_api.cpp
+++ b/Marlin/src/HAL/shared/eeprom_api.cpp
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/shared/eeprom_api.h b/Marlin/src/HAL/shared/eeprom_api.h
index cd744f82dc..7be1e72f7a 100644
--- a/Marlin/src/HAL/shared/eeprom_api.h
+++ b/Marlin/src/HAL/shared/eeprom_api.h
@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/HAL/shared/eeprom_if.h b/Marlin/src/HAL/shared/eeprom_if.h
index e496de2a03..8b9791e1f8 100644
--- a/Marlin/src/HAL/shared/eeprom_if.h
+++ b/Marlin/src/HAL/shared/eeprom_if.h
@@ -1,9 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/Marlin/src/lcd/dogm/fontdata/langdata.h b/Marlin/src/lcd/dogm/fontdata/langdata.h
index 746a3bd0b4..a9e1b6cd94 100644
--- a/Marlin/src/lcd/dogm/fontdata/langdata.h
+++ b/Marlin/src/lcd/dogm/fontdata/langdata.h
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/lcd/extui/ftdi_eve_touch_ui/cocoa_press/_bootscreen_landscape.h b/Marlin/src/lcd/extui/ftdi_eve_touch_ui/cocoa_press/_bootscreen_landscape.h
index e7b06f7bd3..fed407326b 100644
--- a/Marlin/src/lcd/extui/ftdi_eve_touch_ui/cocoa_press/_bootscreen_landscape.h
+++ b/Marlin/src/lcd/extui/ftdi_eve_touch_ui/cocoa_press/_bootscreen_landscape.h
@@ -21,7 +21,6 @@
  * 0x0000 and 0xFFFE. A single 0xFFFF in the data stream indicates the
  * start of a new closed path.
  */
-
 #pragma once
 
 constexpr float x_min = 0.000000;
diff --git a/Marlin/src/lcd/tft/images/time_elapsed_32x32x4.cpp b/Marlin/src/lcd/tft/images/time_elapsed_32x32x4.cpp
index b5d35e1dbc..74947f9ce5 100644
--- a/Marlin/src/lcd/tft/images/time_elapsed_32x32x4.cpp
+++ b/Marlin/src/lcd/tft/images/time_elapsed_32x32x4.cpp
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/lcd/tft/images/time_remaining_32x32x4.cpp b/Marlin/src/lcd/tft/images/time_remaining_32x32x4.cpp
index 8b433cfbe8..aa3db49164 100644
--- a/Marlin/src/lcd/tft/images/time_remaining_32x32x4.cpp
+++ b/Marlin/src/lcd/tft/images/time_remaining_32x32x4.cpp
@@ -2,6 +2,9 @@
  * Marlin 3D Printer Firmware
  * Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
diff --git a/Marlin/src/pins/mega/pins_WEEDO_62A.h b/Marlin/src/pins/mega/pins_WEEDO_62A.h
index d13de7ed30..f3adf5eab8 100644
--- a/Marlin/src/pins/mega/pins_WEEDO_62A.h
+++ b/Marlin/src/pins/mega/pins_WEEDO_62A.h
@@ -25,7 +25,6 @@
  * Copyright (c) 2019 WEEDO3D Perron
  * ATmega2560
  */
-
 #pragma once
 
 #include "env_validate.h"
diff --git a/Marlin/src/sd/usb_flashdrive/lib-uhs2/masstorage.h b/Marlin/src/sd/usb_flashdrive/lib-uhs2/masstorage.h
index aafb91624b..fa56b68573 100644
--- a/Marlin/src/sd/usb_flashdrive/lib-uhs2/masstorage.h
+++ b/Marlin/src/sd/usb_flashdrive/lib-uhs2/masstorage.h
@@ -22,7 +22,6 @@
  * Web      :  https://www.circuitsathome.com
  * e-mail   :  support@circuitsathome.com
  */
-
 #pragma once
 
 // Cruft removal, makes driver smaller, faster.
diff --git a/Marlin/src/sd/usb_flashdrive/lib-uhs2/settings.h b/Marlin/src/sd/usb_flashdrive/lib-uhs2/settings.h
index 268c0e1d1d..1d46dc69b3 100644
--- a/Marlin/src/sd/usb_flashdrive/lib-uhs2/settings.h
+++ b/Marlin/src/sd/usb_flashdrive/lib-uhs2/settings.h
@@ -22,7 +22,6 @@
  * Web      :  https://www.circuitsathome.com
  * e-mail   :  support@circuitsathome.com
  */
-
 #pragma once
 
 #include "../../../inc/MarlinConfig.h"