"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHFF-W4T : accessed 21 February 2016), Rosia M Ross in household of Albert F Ross, Asotin, Asotin, Washington, United States; citing sheet 2B, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,821,920.