United States, Selective Service System. World War I Selective Service System Draft Registration Cards, 1917-1918. Washington, D.C.: National Archives and Records Administration. M1509, 4,582 rolls. Imaged from Family History Library microfilm.
"Maine, Marriage Index, 1892-1966, 1977-1996," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KCN8-573 : 27 November 2014), Charles S Parsons and Carrie A Dyer, 22 Feb 1902; citing Marriage, Maine, United States, State Archives, Augusta.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MR3C-9FP : accessed 2 October 2021), Charles S Parsons, North Haven, Knox, Maine, United States; citing enumeration district (ED) ED 144, sheet 1B, family 18, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 542; FHL microfilm 1,374,555.