Compact tree of Pearl Ismay Napier
| Anthony Swan 1790–1875 | |||||||||||||
| Joseph Swan – | Edward Frazer Swan 1846–1908 | Mary Simons 1815–1887 | |||||||||||
| Charlotte Lambert – | |||||||||||||
| Charles Christopher Napier 1864–1942 |
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Rosalie Elizabeth Swan 1881– | |||||||||||
| Margaret Steede – | Mary Elizabeth Buckingham 1864–1933 | Lucinda Richardson – | |||||||||||