I did a Google search like KBCraig, and could not find a trace of JJT. It looks like the area of Sullivan north and west of I-44 has been extensively developed since the late 70's, early 80's. I'm talking businesses, schools, and housing developments. This search may be harder than I thought. However, I still have faith that if you talk to some of the older people in town who have lived there since the 60s or 70s, they will be able to give you a location. Again, good luck!