Compact tree
| William Vickers Swan 1857–1923 | Thomas Darrell – | ||||||||||||
| Frederick Newman Swan 1894–1980 | George Raymond Swan 1926–1985 | Elizabeth Ambergine Darrell 1894–1961 | |||||||||||
| Lavinia Jane Knights 1862–1923 | Elizabeth Burchall – | ||||||||||||
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| Helen Cynthia Louise Trott 1930– | |||||||||||||