The Pontiac Library has a nice genealogy section plus county information. Maybe if you called them they would have information on how to obtain a county township map? I have copied several old township plat maps but unfortunately don't have a copy of just the county with townships or I'd send one to you! Also, Verda, at the FORT, as someone else suggested, is very helpful and for a small donation she would probably send you what you need if she has it.