I hadn't heard about the fire. That's a shame. Now my best bet would be to find the cemetery, and also to perhaps find the church that the acre's would have attended. On a map of winfield township from 1874 that I have, it shows land ownerships(I think) and there are also some locations of schools, churches, and other things. Perhaps if the church they attended is still there, they might have some family records. I also did a search on "Acre" on whitepages.com and came up with a Thomas Acre who lives in Cabot PA, about 5 miles from the Acre Farm. I also found a Thomas R. Acre and a Ronald Acre both living in Cabot, PA and they are both about 5 miles from the farm too. I have their phone numbers and I keep meaning to call them. I also found a Charles in Freeport. Is that you? Amazing what information you can find on the internet.