Compact tree of Willis Leon Swan
| Anthony Swan 1790–1875 | Joseph Swan – | Charlotte Lambert – | |||||||||||
| Cordelia Swan – | |||||||||||||
| Edward Frazer Swan 1846–1908 |
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Mary Elizabeth Buckingham 1864–1933 | |||||||||||
| Mary Simons 1815–1887 | Lucinda Richardson – | ||||||||||||