In article , Andrew Gray wrote:

The squash court was in the West Stands at Stagg Field, Chicago; the
building was torn down in 1960, and a bronze scuplture built on the site
in 1967. Can't find out if anyone played squash there in the interveing
eighteen years, though...

Following up - Stagg Field kept being described as "abandoned" in the
cites, so it may well not have been used at all post-Fermi.

--
-Andrew Gray