↑ "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDG5-M6S : accessed 27 January 2020), Hazel Vandermark in household of Rufus Vandermark, Huntington, Ross, Ohio, United States; citing ED 122, sheet 2A, line 41, family 35, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1431; FHL microfilm 1,821,431.
↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X4C4-L5D : accessed 27 January 2020), Hazel Williamson in household of Rufus Vandemark, Chillicothe, Ross, Ohio, United States; citing enumeration district (ED) ED 23, sheet 3A, line 27, family 59, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1865; FHL microfilm 2,341,599.
↑ "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KWLD-V49 : 1 December 2019), Hazel Williamson in household of Albert Williamson, Benton Township, Pike, Ohio, United States; citing enumeration district (ED) 66-3, sheet 2B, line 75, family 31, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 3129.
↑ "Ohio, County Marriages, 1789-2013," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:2QHT-T65 : 26 August 2019), Albert Williamson and Hazel Vandemark, 14 Feb 1929; citing Marriage, Ross, Ohio, United States, , Franklin County Genealogical & Historical Society, Columbus; FHL microfilm.
↑ "Ohio, County Marriages, 1789-2013," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:2QHY-TKY : 26 August 2019), Porter Lewis Mitchell and Hazel Vandemark Williamson, 10 Apr 1951; citing Marriage, Ross, Ohio, United States, , Franklin County Genealogical & Historical Society, Columbus; FHL microfilm.