"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KMB6-G55 : accessed 30 March 2015), Charles Akers in household of Charles B Akers, Ward 2, Des Moines, Des Moines Township, Polk, Iowa, United States; citing enumeration district (ED) 100-37, sheet 6A, family 133, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 1194.