Family: William Percival Blackley / Constance Edith Hassall (F2312)
 | Richard Hassall, M.D. (1812-1875) 
|
 | Alicia Goddard (1831-1888)
|
| Florence Ida Hassall (1869- )  |
| Francis Algernon Hassall (1859-1886) |
| Alicia Beatrice Hassall (1861-1886) |
| Arthur Herbert Hassall (1865-1942) |
| Eustace Stuart Hassall (1868-1907) |
| Constance Edith Hassall (1863-1918)
|
| William Percival Blackley (1860- ) |
| Vera G M Blackley (1890- ) |
| Gwendoline B Blackley (1886- ) |