@jeffjarvis
You said you worked at the Lombard Ponderosa. I wonder what years that was. Immediately after graduating from UW Madison, I worked at GTE Automatic Electric in Northlake Illinois. From June 1978 until June 1979. I lived at International Village in Lombard. That was about 2 blocks west of the Ponderosa. The 2 restaurants that I ate at was the Ponderosa in Lombard and the Big Boy a couple of miles west on Roosevelt Ave in Glen Ellyn.