עץ הקומפקטי של Gregory Jason Roydhouse |
| William Francis Roydhouse 1856–1926 (70) | John Crawley 1846–1923 (77) | | | ||||||||||
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| Francis William Roydhouse 1877–1943 (65) |  | Malcolm Roydhouse 1909–1984 (74) |  | Muriel Blanch Crawley 1883–1973 (90) | | | | | | ||||
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| Annie Maxton 1855–1929 (74) | Helen Inverdale Cadenhead 1860–1949 (89) | | | ||||||||||
| David Francis Roydhouse 1946– |
| Katherine Marguerite Simpson 1949– | |||||||||||
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| William David Nelson 1872–1935 (63) | | Emma Jean Nelson 1916–1984 (67) | | Mary Fox 1878–1944 (66) | | | | | | ||||
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