| Title | Dr. |
| Last Name | Mearns |
| First Name | John |
| Nativity | Scotland |
| Business | Physician and surgeon |
| Year Settled | 1869 |
| Post Office | Petrolia |
| Town | Petrolia |
| Township | Enniskillen |
| County | Lambton |
| Source Date | b. 1852 |
| Atlas Date | 1880 |
| Copyright © McGill University, 2001 | |||