If you're still looking, I may be able to give you a lead on the Offhaus family. There are many Offhauses in the East Aurora/Marilla/Wales Center area of western NY, not far from Buffalo. I believe one of my cousins was one of the town clerks or historians in one of those little towns for some time. It's been a while since I've been out that way, so my memory is a bit foggy, but I got a lot of genealogical information on the Offhauses from the historical society or clerk in one of those towns several years ago. I think it was Wales Center, and I believe the building was on Route 20. If I can locate my files or remember more, I'll repost here.