"New York State Census, 1925," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSSF-Z35 : accessed 26 November 2015), Stephen C Bolton, Watertown Ward 10, A.D. 01, E.D. 01, Jefferson, New York, United States; records extracted by Ancestry and images digitized by FamilySearch; citing p. 11, line 46, New York State Archives, Albany.
"United States Census, 1930", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X7Z5-531 : accessed 26 November 2015), Stephen Bolton in entry for Stephen D Bolton, 1930.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JP6P-XN1 : accessed 26 November 2015), Stephen C Bolton, 11 Aug 1997; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).