Mary Sickles was born 8 February 1807 in Charlottetown, Nova Scotia, Canada to Dembo Sickles (1762-1845) and Mary Moore (1762-1848) and died 9 March 1843 Amherst, Nova Scotia, Canada of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Cornelius Jackson (1837-1909) | 22 October 1837 Amherst, Nova Scotia, Canada | 19 August 1909 Amherst, Nova Scotia, Canada | Sarah Piel (1847-1030) |
Siblings
| Name | Birth | Death | Joined with |
| John Sickles (1804-1893) | 25 March 1804 Three Rivers, Prince Edward Island, Canada | 12 February 1893 Lower Montague, Prince Edward Island, Canada | Louisa Martin (1814-1887) |
| Mary Sickles (1807-1843) | 8 February 1807 Charlottetown, Nova Scotia, Canada | 9 March 1843 Amherst, Nova Scotia, Canada | James John Jackson (1801-1888) |