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