Waller-Joos-Stetzler
"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MGJB-5HZ : accessed 29 December 2014), William Houston Waller in household of Petra Mortensen, Seattle Ward 1, King, Washington, United States; citing enumeration district (ED) 58, sheet 1B, family 6, NARA microfilm publication T624, National Archives and Records Administration, Washington, D.C.; FHL microfilm 1,375,671.
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Title "United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MGJB-5HZ : accessed 29 December 2014), William Houston Waller in household of Petra Mortensen, Seattle Ward 1, King, Washington, United States; citing enumeration district (ED) 58, sheet 1B, family 6, NARA microfilm publication T624, National Archives and Records Administration, Washington, D.C.; FHL microfilm 1,375,671. Short Title William Houston Waller in household of Petra Mortensen, "United States Census, 1910" Source ID S1855 Linked to (1) Waller, William Houston