Waller-Joos-Stetzler
"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VTZ2-7RR : accessed 8 January 2015), Mary W S Soper in household of John Harvey Soper, Area C, Tampa, Election Precinct 21, Hillsborough, Florida, United States; citing enumeration district (ED) 70-50, sheet 4A, family 79, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 634.
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Title "United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VTZ2-7RR : accessed 8 January 2015), Mary W S Soper in household of John Harvey Soper, Area C, Tampa, Election Precinct 21, Hillsborough, Florida, United States; citing enumeration district (ED) 70-50, sheet 4A, family 79, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 634. Short Title Mary W S Soper in household of John Harvey Soper, "United States Census, 1940" Source ID S2100 Linked to (1) Shepherd, Mary Waller