Kompakt træ for Mark Anthony Roydhouse |
| William Francis Roydhouse 1856–1926 (70) | John Crawley 1846–1923 (77) | | | ||||||||||
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| Francis William Roydhouse 1877–1943 (65) |  | Donald Roydhouse 1909–1992 (83) |  | Muriel Blanch Crawley 1883–1973 (90) | | | Gregory Howells 1918–1997 (78) | | | ||||
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| Annie Maxton 1855–1929 (74) | Helen Inverdale Cadenhead 1860–1949 (89) | | | ||||||||||
| Glenn Francis Roydhouse 1952– |
| Catherine Joy Howells 1957– | |||||||||||
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| Thomas Cannon – | | | | ||||||||||
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| Thomas Birkby Cannon 1896–1972 (76) | | Audrey Isabella Cannon 1920–1999 (79) | | Anastasia Symons 1900–1979 (79) | | | Jean Eveleyn Bougen 1923–2007 (84) | | | ||||
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| Caroline Paul – | | | | ||||||||||