"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KMYK-6FY : 16 March 2018), Edith T Wrigley in household of Jack Wrigley, Area A, Cedar Rapids, Rapids Township, Linn, Iowa, United States; citing enumeration district (ED) 57-38, sheet 2A, line 25, family 27, 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 1175. - Edith T Wrigley dans le foyer de Jack Wrigley, "United States Census, 1940"
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