Compact tree of John Willis Swan
| Anthony Swan 1790–1875 | Anthony Swan 1820–1876 | Charlotte Lambert – | |||||||||||
| Cordelia Swan – | |||||||||||||
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Charlotte Lydia Swan 1860– | ||||||||||||
| William Tankard 1792–1840 | Lydia Tankard 1822–1886 | Mary Dickerson 1803–1843 | |||||||||||