Though not an aviator himself, he was largely responsible for the acquisition of close combat support aircraft for the Army before and during the Vietnam War.

[1][2] Born into a military family at Fort Slocum, New York, Bunker enlisted in the Army on 29 June 1929.

[3][4][5][6] Before American entry into World War II, Bunker participated in the 1939–1940 engineering review of a barge canal project through Nicaragua by surveying the proposed route.

[6] Bunker began to manage marine and rail transport equipment during the war, earning his first award of the Legion of Merit.

[8] As Assistant Chief of Transportation for Army Aviation, Bunker helped arrange for the purchase of the CV-2 Caribou.

[12][13] He died from a heart attack in his quarters at Fort Myer, Virginia two months before his scheduled retirement on 1 August 1969.

[14][15][18][19] Bunker Hall at the Army Logistics University, Fort Lee, Virginia was named in his honor.