Interesting photo and some information.
USAF C-54 serial number 43-17192 was built at the Douglas Aircraft Company plant in Chicago (Orchard Place/Douglas Field), which is the site of the present-day O'Hare International Airport.
During World War II, the Douglas Aircraft Company manufactured the C-54 Skymaster at two primary locations:
Santa Monica, California: 515 units were produced here.
Chicago, Illinois (Orchard Place/Douglas Field): 655 units were produced here.
They built more C54's in Chicago than at the main Douglas plant in California

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They also stored many aircraft for the Smithsonian and Air Force museum at ORD including the Enola Gay B29 at the old Douglas aircraft factory. It was torn down in the 1970's.
The reason given for not producing aircraft at ORD was the weather. Probably more attributed to stupid politician's, as St Louis has a huge fighter plant, and they have almost the same weather.
https://airlinersgallery.smugmug.com/keyword/18392