Alexander Berwick 1875–1952 | | | | Thomas Ellwood Blackett 1838–1901 | | | | Thomas Blackett 1805–1859 | | | | Thomas Blackett 1778–1812 Elizabeth Ellwood 1787–1860 | | | | Benjamin Blackett 1745–1818 Margaret Gibson 1747–1833 | | |
| | | Elizabeth Willon 1759–1848 |
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| | | William David Berwick –1921 |
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