| | Miles John Blackett 1891–1972 Eva B. (Mae) Stewart 1890–1973 | | | | Alfred Tennyson Blackett 1855–1934 Magdalena (Madeline) George 1858–1939 | | | | Thomas Blackett 1819–1899 | | | | Robert Blackett 1796–1835 Elizabeth (Betty) Buckley 1799–1866 | | |
| | | Mary English or Bell (see note) 1786–1871 |
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| | | Valentine George 1804–1875 |
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