Former Pacific-10 Conference Commissioner Wiles Hallock died at his home Monday. He was 91.

Hallock was commissioner of the Pacific-10 from 1971-1983. Before joining what was the Pac-8 Conference, Hallock was commissioner of the Western Athletic Conference. He also was NCAA director of public relations from 1963-67.

Hallock oversaw the expansion of the Pacific-8 to the Pacific-10 in 1978. While serving as Pac-10 commissioner, Hallock held prominent positions as a member of the NCAA Football Television Committee and NCAA Division I Men’s Basketball Committee.

He was born February 17, 1918, in Denver and received a bachelor’s degree from the University of Denver in 1939. He ran track in college and served as track coach at Wyoming for five years.

Details on a memorial service are pending.