Thanks for the pic and the replies, but the signage is very different. One thing I forgot to mention is that the buildings were painted a light cream color. The station I saw the most often looked like its single service bay had been boarded over before the paint; giving me the impression that as Rocket, it never did repairs.
I believe one station was in Hales Corners, and another in an unincorporated town which may have been Springfield. They were all over the area before the STH-15 expressway (now I-43) was built.
