List of Changes in the Names of Post Offices between the 1st of January, 1859, and 1st of January, 1860.
| LATE NAME OF POST OFFICE. | ELECTORAL COUNTY OR DIVISION. | NEW NAME SELECTED. |
| Amherst Island | Addington | Emerald. |
| Arran | Bruce | Invermay. |
| Chateauguay | Chateauguay | Chateauguay Basin. |
| Comer’s Mills | Addington | Violet. |
| Kettleby’s Mills | York, N. R. | Kettleby. |
| Migneault | Argenteuil | Muddy Branch. |
| Mortimer | Grey | Singhampton. |
| Port Sarnia | Lambton | Sarnia |
Transcriber's notes:
Cover is in the public domain.
A number of typographical errors have been corrected silently.
Contractions for Town and Northumberland were expanded.