"Maine Vital Records, 1670-1921," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:2HV5-1R6 : 2 March 2021), Zylpha Spaulding Prince, 10 Aug 1856; citing Turner, , Maine, United States, multiple sources, Maine; FHL microfilm.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MR3Z-6JC : accessed 27 January 2022), Zelpha S Prince, Norway, Oxford, Maine, United States; citing enumeration district (ED) ED 199, sheet 11A, family 250, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 543; FHL microfilm 1,374,556.