"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2TP-CN6 : accessed 27 May 2015), Margaret Schroer in household of Minnie Schroer, Jefferson Ward 4, Cole, Missouri, United States; citing enumeration district (ED) 51, sheet 12B, family 252, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,790.