↑ "United States Census, 1910," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MLG2-18Q : accessed 23 March 2021), Anton Harrauff in household of Lenhart Harrauff, Dickinson Ward 6, Stark, North Dakota, United States; citing enumeration district (ED) ED 163, sheet 7B, family 148, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1148; FHL microfilm 1,375,161.
↑ "United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XKVF-TZL : accessed 23 March 2021), Anton Hearruif, South Heart, Stark, North Dakota, United States; citing enumeration district (ED) ED 19, sheet 1A, line 40, family 10, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1742; FHL microfilm 2,341,476.