I found the following Sissons in databases while searching the web: Peter P. Sisson, son of George Sisson and Hulda Potter, b. 1841 in Collins, Erie Co., NY. He died in 1865 and served in the war of 1812. He served in the 157 Regiment (Westcot's) NY Militia as a Private. There is a Peter Sisson listed in the 1820 and 1830 NY Census, Dutchess Co., Milan Twp. He is shown again in the 1830 NY Census in Oneida Co., Floyd Twp. Hope this helps someone. Cathy