Sandy's first location in the Chicagoland area was in Addison, Illinois, most likely in 1963 or 1964. This was followed by a twin location in Elmhurst, Illinois in 1965 and by another twin location in Hillside, Illinois in 1967. An Aurora, Illinois Sandy's most likely opened in 1967 followed by another Aurora location arriving sometime around 1970.
The two Aurora locations survived until the Hardees buy-out in 1973. Sadly, Elmhurst (which was the video training location for corporate Sandy's films and a location that the first Sandy's female manager, Sue Mower worked at), Hillside and Addison were no longer in existence by this time.
Warren, a contributor to this site, remembers the Hillside location and provided welcomed information regarding this Sandy's.
Sandy's in Hillside, Illinois was located on the east end of the property where the Hillside Shopping Center resides. It was directly across from the Hillside Theater and Hillside Bowl. After Sandy's closed, the store was a stereo store for a while. I do not know if the structure still stands.
If you have any memorabilia, pictures or stories of Sandy's in Hillside, Elmhurst or Aurora, Illinois or elsewhere, please email me!