Ingersoll Memorial Golf Course is an 18-hole public golf course in Rockford, Illinois, built in 1922 and designed by Tom Bendelow. It sits in the $$ (moderate) price range for golf in Illinois. The season runs Mar 28 to Oct 31. Tee times can be booked 7 days in advance. Guests are welcome.
Details like fees and seasons change, so call the course before you head out.