My father, Fred Fredericks, was a Chicago firefighter from the late 1950s until his retirement in 1986. He was stationed at 10 W. Hubbard, 81st and Ashland, and Midway Airport. He passed away this fall, and my siblings and I found the attached picture while going through his belongings.
This picture shows my father putting water on a fire, in the winter of a year in the late 50s or early 60s, we believe.
We thought that visitors to your blog might find it interesting, and might possibly remember some specifics about this fire.
Thank you for your interest.
-Paul Fredericks, Plainfield, IL