Santa Fe SW9 1438 backs Amtrak P30CH 724 and its train, #305 "The State House", into Chicago Union Station on July 4, 1976.
Amtrak P30CH 703 brings train #347, the Illinois Zephyr, out of Chicago on July 4, 1976.
Amtrak SDP40Fs 599 and 634 back train #49, the Lake Shore Limited, out of Chicago Union Station on Independence Day, 1976.