The Capitol Diner, located at 615 N. Cameron Street, in the shadow of the State Street Bridge, opened on October 2, 1940.  It sat on a 10,000 square foot lot, roughly where the Goodwill donation is currently. The diner was built by the Jerry O’Mahony company of Elizabeth, New Jersey, and was originally owned by James S. Banford and Richard K. Enders. It had a brown paint scheme and sat 25, 17 at the counter and 8 at four deuce tables.

By the summer or 1941, directories list the lot as the site of a used car dealership, which it would remain for decades. It is unclear what became of the diner.