"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MSCH-KXB : accessed 15 April 2018), Alma M Manson in household of George N Manson, Laona & Shirland Townships, Winnebago, Illinois, United States; citing enumeration district (ED) 125, sheet 7B, family 139, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,355.