עץ הקומפקטי של George D. Whitaker |
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| |  | George Whitaker 1877–1968 (91) |  | | | | William Dobson 1888– | | | ||||
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| Thomas Alfred Whitaker 1903–1981 (78) |
| Alice Dobson 1909–1993 (84) | |||||||||||
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| | | James Roydhouse 1822–1901 (78) | Mark Harrison 1823–1874 (51) | ||||||||||
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| | | Emily Elizabeth Wilson 1879–1960 (81) | | | William Clark Roydhouse 1854–1900 (45) | | Emma Roydhouse 1880–1910 (30) | | Elisabeth Harrison 1855–1932 (77) | ||||
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| | | Ann Johnson 1831–1880 (49) | Jane Jackson 1823–1906 (83) | ||||||||||
