| Reference | Title | Date |
| GD45 | Papers of the Ramsay Family, Earls of Dalhousie | 11th-20th Century |
| GD45/3 | Papers of the 9th Earl of Dalhousie as Lieutenant Governor of Nova Scotia (1810-1820) and Governor-in-Chief of Canada (1820-1828). | 1789-1839 |
| GD45/3/9 | Folder containing 37 plans and abstract of the estimated expenditure of the Rideau Canal, signed by Lt. Col. John By | 5 May 1828 |