Retired Air Force Brig. Gen. Millard C. Young, 73, a staff officer in the Army Air Forces in the Far East during World War II and who later helped organize the first U.S. atom bomb test at Bikini island in 1946, died Sunday at DeWitt Army Hospital at Fort Belvoir after a heart attack.

Gen. Young received the Legion of Merit for his organization of supply stations in Australia during World War II. He was chief of staff of the 1st Air Force Command and also served as chief of operations and chief of management control for Army Air Forces headquarters in the Far East during the war.

In 1946, as chief of staff of a special task force, he helped organize and participated in the first U.S. atom bomb test at Bikini island.

He subsequently served as chief of the guided missiles branch of research and development at Air Force headquarters here, as commander of the Military Air Transport Command's air resupply and communications service and as chief of staff of Air Force psychological warfare.

In 1952, when he was promoted to brigadier general, he became director of the joint subsidiary activities division of the Joint Chiefs of Staff.

From 1955 to 1958, he was chief of staff of the Air Force's Southern Naples, Italy.

His last assignment before retiring in 1961 was as director of the J-5 division of the Joint Chiefs of Staff. He was credited with the successful negotiations for retention of U.S. military bases in Morocco in 1959.

Gen. Young was born in Sawtelle, Calif., and graduated from the U.S. Military Academy at West Point in 1931. He became a pilot and served at War II.

Gen. Young, a Washington area resident since 1958, served as an engineering consultant after his military retirement. He lived in Annandale. e

Survivors inclue his wife, the former, Imogene Shannon, and a daughter, Imogene Lincoln, both of Annandale; a son, Millard C. Jr., of Dallas; a brother, Arthur G., of Three River, Calif., and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the West Point Army Athletic Association.