"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M63W-B3R : accessed 30 July 2020), James Louis Carr in household of Chas B Carr, Election District 1, Anne Arundel, Maryland, United States; citing ED 3, sheet 1B, line 59, family 13, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 653; FHL microfilm 1,820,653.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X3WM-VBF : accessed 30 July 2020), James L Carr in household of Charles B Carr, Election District 1, Anne Arundel, Maryland, United States; citing enumeration district (ED) ED 2, sheet 4B, line 62, family 81, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 845; FHL microfilm 2,340,580.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K76F-H3X : 27 February 2020), Louis Carr in household of Charles B Carr, Election District 1, Anne Arundel, Maryland, United States; citing enumeration district (ED) 2-2, sheet 18B, line 58, family 308, 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 1501.
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