1926–1975♀ Marjorie S. Simpson 1943–♂ Howard Macpherson Roydhouse Jr | | | | 1915–1991♂ Howard Macpherson Roydhouse II | | | | 1884–1955♂ Howard Macpherson Roydhouse 1887–1973♀ Sadie Estelle Timmons | | | | 1846–1934♂ George W. Roydhouse 1853–1911♀ Ida Virginia Macpherson 1864–1939♀ Anna Jenkins Kemp | | | | 1817–1850♂ John Roydhouse | | |
| | | | 1813–1873♂ William Troth Kemp 1836–1930♀ Margaret Ann Lowber |
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