עץ הקומפקטי של Aaron Dahm |
| | | William Francis Roydhouse 1856–1926 (70) | John Crawley 1846–1923 (77) | ||||||||||
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| |  | |  | | Francis William Roydhouse 1877–1943 (65) | | Cedric Roydhouse 1914–1991 (76) | | Muriel Blanch Crawley 1883–1973 (90) | ||||
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| | | Annie Maxton 1855–1929 (74) | Helen Inverdale Cadenhead 1860–1949 (89) | ||||||||||
| Bruce Dahm 1950– |
| Cheryl Ann Roydhouse 1949– | |||||||||||
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| | | | | | Spencer William Birkett 1896– | | Mary Ellen Birkett 1920–2010 (90) | | Mary Ellen Wotton 1899– | ||||
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