"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MMPB-QYB : accessed 01 Oct 2014), John M Ellis, Damon Precinct Spokane city Ward 4, Spokane, Washington, United States; citing sheet 4A, family 70, NARA microfilm publication T623, FHL microfilm 1241751.
"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MHNK-JT2 : accessed 01 Oct 2014), Dora E Ellis in household of John M Ellis, Seattle, King, Washington, United States; citing sheet 1B, family 13, NARA microfilm publication T625, FHL microfilm 1821925.