McMillan (1893-1975) was born in Denver, Colorado, and attended Colorado College from 1915-1917, when he left school to join the U.S. Army. He soon transferred from the Infantry to the Army Air Corps and was commissioned as a pilot and 2nd Lieutenant in 1918. McMillan spent several years barnstorming before entering the air mail service as a pilot with Western Air Express (later Western Airlines) in 1929. From 1934-1946, he was a pilot with Eastern Airlines. McMillan was a member of the Colorado Air National Guard from 1925-1934 and 1950-1957. He was a civilian employee at Colorado's Buckley Air National Guard Base from 1957-1968 and was inducted into the Colorado Aviation Hall of Fame in 1972. McMillan also wrote short stories which were published mainly in boy's magazines.
From the description of Papers, 1893-1975. (University of Wyoming, American Heritage Center). WorldCat record id: 32112343
