Fact: Census (1910) Frankfort, Will, Illinois, United States
Fact: Marital Status Single
Sources
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKF4-K1L : accessed 22 December 2016), John G Knapp in household of Karl Knapp, Frankfort, Will, Illinois, United States; citing enumeration district (ED) ED 148, sheet 6B, family 147, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 333; FHL microfilm 1,374,346.
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