| Last Name | Groh |
| First Name | John D. |
| Nativity | Germany |
| Business | Merchant; Hotelkeeper; Postmaster |
| Year Settled | 1845 |
| Post Office | Kossuth |
| Township | Waterloo |
| County | Waterloo |
| Source Date | b. 1842 |
| Atlas Date | 1881 |
| Concession and Lot | Lot size |
| GCT, 89 | 3.5 |
| GCT, 89: |
| Copyright © McGill University, 2001 | |||