| Sources |
- [S250] population schedule, Middletown City, (Butler County, Ohio, United States: Charles Commer household), micropublication T623, roll 1244. (Reliability: 2), 20 Jul 2003.
- [S1572] population schedule, (Butler County, Ohio, United States: Arvilla Grunden household, 1880), micropublication T9, roll 996. (Reliability: 2), 28 Jul 2005.
- [S1574] population schedule, Lemon Township, Middletown postoffice, (Butler County, Ohio, United States: Thomas Grunden household, 1870), micropublication M593, roll 1176. (Reliability: 2), 28 Jul 2005.
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