1950–♀ Judith A. Roydhouse | | |
| | 1927–1974♂ Clifford Roydhouse | | |
| | 1893–1964♀ Lilian Sidwell 1889–1958♂ Albert Edward Roydhouse | | | | 1866–♂ George Henry Sidwell |
| | | 1857–1933♂ Edward Roydhouse 1861–1922♀ Catherine Ann Welburn | | | | 1812–1882♂ Thomas Roydhouse | | | | 1778–1858♂ Thomas Roydhouse | | | | 1752–1785♂ Daniel John Roydhouse | | |
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