For citizenship/naturalization papers, have you tried the Westchester County Archives at http://www.co.westchester.ny.us/wcarchives/ and their online resources for Naturalization Records, 1808-1927 -- Personal Name Index. I was able to find a number of papers here for a client. Initial question I was wondering if someone could tell me what type of information is found on citizenship papers. My grandfather came from czech and received his papers in 1924(yonkers, ny). If the papers are worth getting where would I obtain them?