"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MGCV-79D : accessed 27 October 2018), Janett Hertzell in household of George Hertzell, Warren Ward 8, Warren, Pennsylvania, United States; citing enumeration district (ED) ED 183, sheet 1B, family 22, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1425; FHL microfilm 1,375,438. - Janett Hertzell dans le foyer de George Hertzell, "United States Census, 1910"
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