| | 1927–2015♂ Ivan R. Davies 1932–♀ Elizabeth Roydhouse | | | | 1884–1947♂ Charles J. Davies |
| | | 1894–1973♀ Kathleen May Billany | | | | 1854–1900♂ William Clark Roydhouse 1855–1932♀ Elisabeth Harrison | | | | 1822–1901♂ James Roydhouse | | |
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| | | 1849–1913♂ John Henry Billany 1868–1946♀ Catherine Sproxton |
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