George Morgan Chinn was an American weapons expert and soldier. He attended Centre College, and played on the 1921 Centre Praying Colonels football team, which won the national championship. Chinn then opened a diner in a cave, known as 'The Cave House', which also functioned as an underground gambling center. He served as the bodyguard of Happy Chandler while he was governor of Kentucky. Chinn was also Sergeant at Arms for the Kentucky Legislature. Later he was the production line inspector for several weapons' manufacturers, and eventually, a Marine. He designed the Mk 19 grenade launcher.

The 1921 Centre Praying Colonels football team represented Centre College of Danville, Kentucky, in the 1921 college football season. Led by coach Charley Moran, the Praying Colonels compiled a 10–1 record, scoring 334 points while allowing 28 points.