indianapolismotorspeedway.com: 1971 - Al Unser in pit lane
indianapolismotorspeedway.com: 1975 - Al Unser with Bob Unser
indianapolismotorspeedway.com: 1978 - Al Unser in Victory Circle
indianapolismotorspeedway.com: 1972 - Al Unser with Bobby Unser