Waller-Joos-Stetzler
"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KS21-B8C : accessed 13 Mar 2014), Martha Schaefer in household of John Schaefer, Moore Township, Stevens, Minnesota, United States; citing enumeration district (ED) 75-13, sheet 3A, family 35, NARA digital publication of T627, roll 1962.
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Title "United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KS21-B8C : accessed 13 Mar 2014), Martha Schaefer in household of John Schaefer, Moore Township, Stevens, Minnesota, United States; citing enumeration district (ED) 75-13, sheet 3A, family 35, NARA digital publication of T627, roll 1962. Short Title Martha Schaefer in household of John Schaefer, "United States Census, 1940" Source ID S559 Linked to (1) Schaefer, Martha Marie