Compact tree of Jacob Roger Allen |
| | Francis William Roydhouse 1877–1943 (65) | Thomas Birkby Cannon 1896–1972 (76) | ||||||||||
| | | Donald Roydhouse 1909–1992 (83) | Grant Anthony Roydhouse 1954– | Audrey Isabella Cannon 1920–1999 (79) | ||||||||
| | Muriel Blanch Crawley 1883–1973 (90) | Anastasia Symons 1900–1979 (79) | ||||||||||
Christopher Allen – |
| Vanessa Amy Roydhouse 1990– | |||||||||||
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| | | | Rita Maria Mc Grail 1960– | | ||||||||
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