Compact tree of Warren Eugene Simmons
| James Lambert Swan 1822–1895 | Richard Knight 1835– | ||||||||||||
| Samuel John Simmons 1854–1903 | William Vickers Swan 1857–1923 | Reginald Osbourough Swan 1888–1964 | Lavinia Jane Knights 1862–1923 | ||||||||||
| Susannah Wilson Harford 1825–1898 | Clarinda Bond – | ||||||||||||
| Nathaniel John Andrew Simmons 1884–1950 |
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Viola Rebecca Swan 1907–1953 | |||||||||||
| Samuel Bean – | Adrianna Elizabeth Bean 1856–1912 | Susan Bean – | John Thomas Robinson – | Sophia Robinson 1887–1976 | Norah Helen Armstrong – | ||||||||