Geroge Robert Maynard Sr. was born on January 25, 1935, in Bellwood, West Virginia. George married Theresa on September 7, 1957, and they had three children: George R. Maynard Jr.; John Thomas Maynard; and Timothy Alan Maynard.
Maynard took two years of welding technology courses and two years of aircraft maintenance technology courses in college.
Maynard was enlisted in the United States Army from 1953 to 1957. Maynard was also enlisted in the United States Air Force from 1958 to 1974.
Maynard was affiliated with the Nevada Test Site as part of the Armed Forces Special Weapons Project at Camp Mercury Nevada during his time with the U.S. Army. Maynard has also worked as an aircraft maintenance supervisor and as an employee at a naval and maritime museum.