In the years since we posted these messages, I have found that your Silas R. and my Lydia P. Seamons are siblings. Their parents were David Seamons and Mary Potter and they were married in RI. Some of the kids were born there, Lydia was born in NY state on their trip to PA. David had a brother Jonathan who also moved to PA with his wife Rebecca Tuttle. This is what I currently have on Silas.
Charleston Twp, Tioga County, PA1860 censuspage 91 29 480 480 Seamans Silas R. 24 MLaborer 75 100 PA 30Lucina 24 FPA 31Herbert 2/12 MPA
1880 census Roulette, Potter Co, PA SCHOONOVER Edith - 10 - PA - granddaughter - - 135 SEAMANS Annjanett - 46 - PA - Keeping House - - 135 SEAMANS Frank H. - 20 - PA - At Home - - 135 SEAMANS S. R. - 44 - PA - Farmer - - 135