1928–2008♂ Peter Whitton Roydhouse | | |
| | 1893–1959♂ William Roydhouse 1897–1954♀ Mary Eleanor Whitton | | |
| | 1895–♀ Mary Alberta Roydhouse 1897–1953♂ Sylvester J. Buckton | | |
| | 1861–1922♀ Mary Ann Harrison 1863–1944♂ Albert Edward Roydhouse | | | | | 1839–1898♂ John Roydhouse 1837–1888♀ Hannah Richardson | | | | 1812–1882♂ Thomas Roydhouse | | | | 1778–1858♂ Thomas Roydhouse | | | | 1752–1785♂ Daniel John Roydhouse | | |
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