| Carnegie Historical Presv Inc | 812-744-4015 | PO Box 118 | Moores Hill | IN | 47032 |
| Curtis Stephen D Phd | 812-333-0344 | 441 W Gourley Pike | Bloomington | IN | 47404 |
| Educational Research Services | 812-743-2439 | RR 1 | Monroe City | IN | 47557 |
| Fangman Stevens Research Inc | 812-284-1655 | Green Tree Mall | Clarksville | IN | 47131 |
| Gore Research Inc | 812-475-2160 | 600 N Weinbach Ave | Evansville | IN | 47711 |
| Jackson & Jackson Research Inc | 812-379-1825 | Fair Oaks Mall | Columbus | IN | 47202 |
| Jefferson County Historical Society | 812-265-2335 | 615 W 1st St | Madison | IN | 47250 |
| P A R | 812-425-3533 | 1510 W Franklin St | Evansville | IN | 47710 |
