| FAIRFIELD TOWNSHIP |
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| Link to Jim Blount's Index of Butler County Place Names | |
| 2350 Canal Road | Bonham Farm/James Mitchell House |
| Canal Rd | Miami-Erie Canal (segment) |
| 3025 Hamilton-Mason Rd | J. McCreery House |
| 3044 Hamilton-Mason Rd | Schlosser House/Schlosser-Schul House |
| 3661 Hamilton-Mason Rd | Caroline Condon House |
| 2310 Hamilton-Middletown Rd | Dwelling |
| 2340 Hamilton-Middletown Rd | Carr-Campbell House |
| 2830 Hamilton-Middletown Rd | Maplewood/Wirtz House |
| 2831 Hamilton-Middletown Rd | J. Carr House |
| 2870 Hamilton-Middletown Rd | Col. John L. Martin House |
| 3620 Hamilton-Middletown Rd | Shafer Farm/Line House |
| N Side Hamilton-Middletown Rd | Windy Hill Farm/Thomas Vancleef House |
| 5850 Headgates Rd | Dwelling |
| 5940 Headgates Rd | Cyrus Fitton House |
| Morris Rd | Isaac K. Morris Residence |
| 6451 Morris Rd | W. G. Seward House |
| 7565 Morris Rd | Evans/Ketcham Residence/District No. 3 School |
| E Side Morris Rd | District No. 3 School |
| E Side Morris Rd | Pleasant View United Brethren Church / Morris Chapel |
| 2965 Old Line Lane | Robert Line House |
| 3133 Perin Place | Rentschler Farm:Milllikin-Rentschler House |
| 3333 Perin Place | Millikin-Seward House |
| 5890 Pleasant Ave | Redlin House |
| 1700 Princeton Rd | Old Butler County Home Outbuildings/Butler County Infirmary Outbuildings |
| 1701 Princeton Rd | Manse of Nazarine Church/Tulley-Lefler House |
| 1891 Princeton Rd | Dwelling |
| 2191 Princeton Rd | Young House |
| 2250 Princeton Rd | Dodsworth House/Azariah Davis House |
| 2625 Princeton Rd | Hentzelman Residence: Dingfelter/Tulley Farm |
| 2865 Princeton Rd | Greve Farm/Schosser House |
| 3015 Princeton Rd | Trebel/Condon Farm |
| 3523 Princeton Rd | Brant/Connoughton/Urmston Farm |
| 3773 Princeton Rd | Block Dairy Farm |
| 3800 Princeton Rd | Leonard Schwegman Residence: E.K. Urmston/W.G. Seward Farm |
| 3911 Princeton Rd | District No. 11 School |
| 3971 Princeton Rd | Ayres Seward Farm |
| 4060 Princeton Rd | Andrews House |
| 5811 Reigart Rd | Robert Kennedy House |
| Tylersville Rd | Trough |
| Tylersville Rd E By-Pass 4 | William S. Gilmore Farm |
| NEC Tylersville Rd | A. B. Combs Farm |
| N Side Tylersville Rd-E-Morris | Miller/Windisch Farm |
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