I don't know if I can help you with the original question you asked about Oliver and Hannah. I have been to the grave yards you mentioned. My understanding is the yard across the tracks in cochecton ny has been moved to that location due to a flood. My line is as follows John Calkin - Oliver - Moses- Ezra- Theron Britton - Ellery - Theron Benton - Myself. Moses had a Ellery T. and a Ruth M., and Ezra had two children of the same names. The Ruths never married from my understanding. Theron Britton is where the original family info I have comes form. The original House in cochecton ny is still standing and being lived in. This house was Olivers and Hannah's from what i understand. My father use to visit it as a child in the 1930's and was owned by Ruth M. the daughter or Ezra until the 1970's when it was sold to person that took advantage of Ruth Calkin and didn't allow her to take any of her personal things after the sale. On the second floor hung a picture frame with The original Land deed for the property that is now Cochecton NY, and the sale papers as the property was sold off by Hannah to pay Olivers debts. Just some tid bits of info. Thanks for that Fosterdale comment. Thats something to look into.