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October 1942. Employees at the Mid-Continent oil refinery in Tulsa, Oklahoma. 4x5 Kodachrome transparency by John Vachon. View full size.
I think I recognize the person on the far right in the red shirt as being T.P. (Theo) Higdon, my wife's uncle. He worked for the refinery for many years and during this time period. He died in Tulsa, OK in 1998 at the age of 86.
If my research is accurate, Mid-Continent Oil later merged with Sunray Oil Co., which itself merged with Sun Oil, now known as Sunoco. The Tulsa refinery is still operational according to the Wikipedia article on Sunoco.
Trivia: Sunray operated the DX chain of gas stations. In S.E. Hinton's novel The Outsiders, Sodapop Curtis worked at a DX station in Tulsa.
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