| | 1979–♀ Anne-Marie Roydhouse | | | | 1952–♂ Glenn Francis Roydhouse 1957–♀ Catherine Joy Howells | | | | 1909–1992♂ Donald Roydhouse 1920–1999♀ Audrey Isabella Cannon | | | | 1877–1943♂ Francis William Roydhouse 1883–1973♀ Muriel Blanch Crawley | | |
| | | 1896–1972♂ Thomas Birkby Cannon 1900–1979♀ Anastasia Symons | | |
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| | | 1918–1997♂ Gregory Howells 1923–2007♀ Jean Eveleyn Bougen |
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