"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MNH2-YCB : accessed 25 Mar 2014), Mary Cavey in household of John Cavey, Elkhorn, Walworth, Wisconsin, United States; citing sheet 81B, NARA microfilm publication T9.
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MM2V-24G : accessed 25 Mar 2014), Mary Cavey, Elkhorn city Ward 1-3, Walworth, Wisconsin, United States; citing sheet 6A, family 128, NARA microfilm publication T623, FHL microfilm 1241820.
"Wisconsin, State Census, 1905," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MMQD-R6J : accessed 26 Mar 2014), Mary Cavey, Elkhorn, Walworth, Wisconsin; citing p. 169, line 9, State Historical Society, Madison; FHL microfilm 1020987.
"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MP2P-V89 : accessed 26 Mar 2014), Mary Cavey in household of George J Miller, Elkhorn Ward 3, Walworth, Wisconsin, United States; citing enumeration district (ED) 138, sheet 16A, family 383, NARA microfilm publication T624, FHL microfilm 1375753.
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