| | 1876–1910♂ John Charles Roydhouse 1867–1934♀ Ada Emily Knighton | | | | 1841–1883♂ George Henry Roydhouse 1840–1910♀ Caroline Bonnick | | | | 1813–1861♂ William Collins Roydhouse 1807–1884♀ Elizabeth Hayward | | | | 1790–1874♂ Thomas Roydhouse | | |
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| | | 1837–♀ Mary Elizabeth Anderton Salmon |
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