| Jack | J | Blacklick Twp |
| Jackson | W S | Saltsburg, Conemaugh Twp |
| Jamison | E | Indiana Borough, White Twp |
| Jamison | J | Smicksburg, West Mahoning Twp |
| Jamison | J A | Wahington Twp |
| Jamison | P K | Rayne Twp |
| Jamison | S S | Conemaugh Twp |
| Jamison | S S | Saltsburg, Conemaugh Twp |
| Jefferys | Jas | Montgomery Twp |
| Jeffreys | Wm | Montgomery Twp |
| Jenkins | J | Wheatfield Twp |
| Jenkins | James | Wheatfield Twp |
| Job | M | Center Twp |
| John | G | Conemaugh Twp |
| Johnson | A | Montgomery Twp |
| Johnsons | J | White Twp |
| Johnston | A | Armagh, Wheatfield Twp |
| Johnston | A | Center Twp |
| Johnston | D | North Mahoning Twp |
| Johnston | E | Saltsburg, Conemaugh Twp |
| Johnston | G | South Mahoning Twp |
| Johnston | G W | Center Twp |
| Johnston | H | Wheatfield Twp |
| Johnston | J | Armagh, Wheatfield Twp |
| Johnston | J | Center Twp |
| Johnston | J | South Mahoning Twp |
| Johnston | J W | Saltsburg, Conemaugh Twp |
| Johnston | James | Indiana Borough, White Twp |
| Johnston | R | White Twp |
| Johnston | S | Wheatfield Twp |
| Johnston | Saml R | Cherryhill Twp |
| Johnston | Wm | Center Twp |
| Johnston | Wm | Washington Twp |
| Jones | D | Green Twp |
| Jones | E D | Green Twp |
| Jones | J | East Mahoning Twp |
| Jordan | ? | West Mahoning Twp |
| Jordan | R | North Mahoning Twp |
| Jordan | R | North Mahoning Twp |
| Jordan | Wm | North Mahoning Twp |
| Juart | T | South Mahoning Twp |
| Justice | W | East Mahoning Twp |
Indiana County, PA