"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3YF-NDY : accessed 6 January 2021), Louis Guilmet, Dover city Ward 1, Strafford, New Hampshire, United States; citing enumeration district (ED) 220, sheet 8A, family 150, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,951.
"United States Census, 1910," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MLZX-W8B : accessed 6 January 2021), Louis Guilmette, Dover, Strafford, New Hampshire, United States; citing enumeration district (ED) ED 278, sheet 7B, family 142, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 866; FHL microfilm 1,374,879.