References
Census
1870 United States Federal Census, Franklin County, Ohio, population schedule, Third Ward of City of Columbus, Columbus post office, folio 141 (back), page no. 24, dwelling 136, family 171, Catherine Fritz in the household of Joseph Fritz; digital image, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M629-16C : 19 October 2013); citing FHL microfilm number 552700; citing NARA microfilm publication M593, roll 1201.
1880 United States Federal Census, Franklin County, Ohio, population schedule, Columbus, folio 214-C, page no. 45, dwelling 6, family 6, Kate Fritz in the household of Joseph Fritz; digital image, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M8M6-8QF : 19 October 2013); citing FHL microfilm number 1255016; citing NARA microfilm publication T9, roll 1016.