Hello and welcome to Gen Wise. Did you know there is a Mainesburg in Tioga County Pennsylvania? I personally don't know much about the place, but a friend had a museum there and I have been to some of her seminars there. She is also the county coordinator for the usgenweb.org site there. The direct access to that site along with Bradford Co in PA and Chemung Co in NY is www.joycetice.com Between the 3 counties she has over 17,000 pages of history and genealogy. You might find something there. Good luck!