Background
Denning, Gary R. was born in 1939.
Transportation company executive
Denning, Gary R. was born in 1939.
Terminal manager Crouch Brothers, St. Joseph, Michigan, 1960-1964. Division vice president Yellow Freight System Inc., Overland Park, Kansas, 1964-1979. With Associated Truck Lines Inc., Grand Rapids, Michigan, since 1979.
Executive vice president, 1979-1981. President, chief executive officer, since 1981. Also board directors.