עץ הקומפקטי של Mavis M. Roydhouse |
| James Roydhouse 1822–1901 (78) | Mark Harrison 1823–1874 (51) | | | ||||||||||
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| William Clark Roydhouse 1854–1900 (45) |  | Arthur Roydhouse 1886–1963 (77) |  | Elisabeth Harrison 1855–1932 (77) | | | | | | ||||
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| Ann Johnson 1831–1880 (49) | Jane Jackson 1823–1906 (83) | | | ||||||||||
| Arthur Roydhouse 1916–1985 (68) |
| Nancy Ilene Gardiner 1921–1996 (74) | |||||||||||
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| Charles Nicholson 1863–1914 (51) | | Eliza Nicholson 1887–1976 (88) | | Ruth Blackburn 1860–1906 (46) | | | | | | ||||
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