I was looking on ancestry and found my Great Great Great Grandmother death Sarah A. Squier d. Feb. 13 , 1880 wife of Albert , Town of Shawangunk . But, I know in 1850-1860 Census there are in Mamakating , SC.,NY (Wurtsboro) . But, in 1870 can't find her at all. I was wondering what historian or someone that I can find that maybe has more information on her. Also another question I have another date april 22 , 1884 (Prosper Peck) , and they lived in Wurtsboro . So, where could I send a request for a look for his death certificate ?