"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4ZV-KCL : accessed 29 November 2015), Ona E Lancaster in household of Harry G Lancaster, Roseburg, Douglas, Oregon, United States; citing sheet 6A, family 110, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,821,494.
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