"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M93P-9KV : accessed 5 January 2015), Nellie Hart in household of Thomas Hart, Cedar Lake Township, Scott, Minnesota, United States; citing sheet 7A, family 108, NARA microfilm publication T623, National Archives and Records Administration, Washington, D.C.; FHL microfilm 1,240,788.
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X3DK-B4S : accessed 5 January 2015), Nellie C Ryan in household of James J Ryan, Cedar Lake, Scott, Minnesota, United States; citing enumeration district (ED) 0004, sheet 6B, family 124, line 81, NARA microfilm publication T626, (Washington D.C.: National Archives and Records Administration, 2002), roll 1129; FHL microfilm 2,340,864.