| O Brien, David | (1-census) | Pleasant Hill, KY | Search: Full Last First | |
| Obrian, Mary | (1-census) | Pleasant Hill, KY | Search: Full Last First | |
| OBRYANT, M. E. | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OCONNELL, KATIE | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OCONNELL, LIZZIE | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OCONNELL, ROSA? | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| Oerbrike, William | (1-whrsreel) | Pleasant Hill, KY | Search: Full Last First | |
| Offord, Daniel | (1-phill_info) | Pleasant Hill, KY | Search: Full Last First | |
| Olsen, Sr Martha | (1-findgrave) | Pleasant Hill, KY | Search: Full Last First | |
| Olson, Anna | (1-whrsreel) | Pleasant Hill, KY | Search: Full Last First | |
| OLSON, ANNA? | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OLSON, MARGARET | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OLSON, MARTHA | (4-phill) | Pleasant Hill, KY | Search: Full Last First | |
| Olson, Olif | (1-whrsreel) | Pleasant Hill, KY | Search: Full Last First | |
| Olson, Oloff | (1-sqtrlyobits) | Pleasant Hill, KY | Search: Full Last First | |
| ONEY, BENJAMIN | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| ORZELLE, JACOB | (2-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OSBORN, AMANDA | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OSBORN, POLLY ANN | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| OSBORNE, CHARLES | (1-phill) | Pleasant Hill, KY | Search: Full Last First | |
| Outlaw, Pvt William Henry | (1-findgrave) | Pleasant Hill, KY | Search: Full Last First |