"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KW1T-YYR : accessed 6 May 2016), Marshall Melvin in household of Eugene Melvin, Ward 37, Chicago, Chicago City, Cook, Illinois, United States; citing enumeration district (ED) 103-2283, sheet 7A, family 127, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 995.
Is Marshall your relative? Please don't go away! Login to collaborate or comment, or ask our community of genealogists a question.