| | Albert Edward Blackett 1906–1961 | | |
William Stanley Blackett 1907–1986 Sarah Weallans Knowles 1908–1953 | | |
| | James Albert Blackett 1880–1958 | | | | Mary Ann Beaglehole 1860–1929 |
| | | William Blackett 1835–1888 | | | | Thomas Blackett 1806–1867 Elizabeth Chapman 1814–1875 | | | | Joseph Blackett 1780–1869 Elizabeth Stephenson 1784–1874 | | | | Cuthbert Blackett 1745–1809 | | |
| | | Ralph Stephenson 1753–1829 | | |
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| | | John (Langstaff) Longstaff 1791–1866 |
| | | Jonathan Morton 1809–1864 |
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