Volkszählung 1910: Jefferson, Nodaway, Missouri, USA
Volkszählung 1900: Jackson Township (east half) Ravenwood village, Nodaway, Missouri, United States
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3Z1-1JD : accessed 23 January 2020), Anna M Schaaf in household of Christopher Schaaf, Jackson Township (east half) Ravenwood village, Nodaway, Missouri, United States; citing enumeration district (ED) 108, sheet 11A, family 191, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,878.
