| Name | Born | Died | Spouse(s) |
| Leonard Johan Haakensen Cannon 1921 | 26 Jan 1921 in St.Pancras, London | 4 Aug 1943 in Burma. Prisoner of war. |
| Leonard's Paternal Ancestors | Leonard's Maternal Ancestors | Leonard's Children | Leonard's Siblings(s) |
| Leonard Charles Courtney Cannon 1886 | Margit Kaistina Haakensen | ||
| John Griffin Cannon 1842 | Mary Ann Pipkin | ||
| William Biswell Cannon 1811 | Ann Griffin | ||
| William Biswell 1783 | Elizabeth Cannon | ||
| Richard Biswell 1757 | Ann Maunder | ||
| William Biswell 1723 | Elizabeth Jones | ||
| William Bissell 1695 | Elizabeth Allom | ||
| Robert Bissil 1660 | Mary Bissil | ||
| Anthony Bissil 1630 | Susannah Bissil |
| Events In Leonard's Life | Date | Event Location | Births & Citations |
| Birth | 26 JAN 1921 | St.Pancras, London | England & Wales, Birth Index: 1916-2005 |