"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XCFM-6SF : accessed 23 July 2021), William Mills in household of Robert Mills, Township 03, Fresno, California, United States; citing enumeration district (ED) ED 59, sheet 53A, line 15, family 68, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 117; FHL microfilm 2,339,852.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K985-DZY : 6 January 2021), William Mills in household of Royce E Garrett, San Francisco, San Francisco, California, United States; citing enumeration district (ED) 38-262, sheet 3B, line 48, family 225, 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 308.
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