| | 1954–♂ Grant Anthony Roydhouse 1960–♀ Rita Maria Mc Grail | | | | 1909–1992♂ Donald Roydhouse 1920–1999♀ Audrey Isabella Cannon | | | | 1877–1943♂ Francis William Roydhouse 1883–1973♀ Muriel Blanch Crawley | | | | 1856–1926♂ William Francis Roydhouse | | |
| | | 1860–1949♀ Helen Inverdale Cadenhead |
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| | | 1896–1972♂ Thomas Birkby Cannon 1900–1979♀ Anastasia Symons | | |
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