1840 Ohio Federal Census Records
| SURNAME | GIVEN NAME | COUNTY | TOWNSHIP | CAME FROM | WENT TO | ELDEST RELATIVE KNOWN | CONTACT FOR MORE INFO |
| BRANDENBURG | Aaron | Logan | Bloomfield Twp. | ||||
| BRANDENBURG | Cornelius | Wood | Bloom Twp. | ||||
| BRANDENBURG | James | Athens | Waterloo Twp. | ||||
| BRANDENBURG | John | Richland | Green Twp. | ||||
| BRANDENBURG | Daniel | Clark | Pike Twp. | ||||
| BRANDENBURG | Eliflet | Clark | Pike Twp. | ||||
| BRANDENBURG | Owen | Clark | Pike Twp. |