Luella Blackett 1889–1973 George Henry Ostler 1887–1969 | | |
| | Andrew Raymond Blackett 1895–1979 | | |
| | Susan Alberta Blackett 1897–1982 George Victor Jones 1893–1986 | | |
| | Thomas Herman Blackett 1898–1940 | | |
Gladys Blackett 1901–1901 | | |
| | Charles Kenneth Blackett 1904–1940 Ellen Gladys Ostler 1904–1957 | | |
| | Don Carlos Snow 1899–1978 | | |
| | Andrew Jackson Blackett 1864–1942 Sarah Jane Worthington 1866–1933 | | |