Marlene Ann Blackett 1944–2015 | | |
| | Venus Emerald Richardson 1906–1998 Lawrence Tame Blackett 1906–1955 | | | | Harvey Valentine Blackett 1876–1957 | | | | John William Blackett 1848–1927 Elizabeth Jane Averett 1854–1931 | | | | Robert Collingwood Blackett 1807–1878 Eleanor (Ellen) Mitchell 1810–1884 | | |
| | | Juduthan Hardy Averett 1816–1902 Holly Jane Tingle 1818–1893 |
|
|
| |
|
|
|