William Sickles was born 18 February 1838 in Three Rivers, Prince Edward Island, Canada to John Sickles (1804-1893) and Louisa Martin (1814-1887) and died 8 March 1911 Montague, Prince Edward Island, Canada of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Isabell Sickles (1876-1953) | 8 September 1876 Charlottetown, Prince Edward Island, Canada | 8 March 1953 Amherst, Nova Scotia, Canada | Alfred Nathan Gay (1876-1958) |
Siblings
| Name | Birth | Death | Joined with |
| William Benjamin Sickles (1838-1911) | 18 February 1838 Three Rivers, Prince Edward Island, Canada | 8 March 1911 Montague, Prince Edward Island, Canada | Hannah Colecroft (1859-1930) |