Interactive tree of Keith Roydhouse
1986–♂ Benjamin Keith Roydhouse
–♀ Emma Evans
1989–♂ Gavin Paul Roydhouse
1953–♂ David John Roydhouse
1953–♀ Wendy Barbara Porter
1924–1990♂ Keith Roydhouse
1920–2001♀ Eileen May Mattison
1887–1967♂ Douglas Roydhouse
1894–1987♀ Olive Augusta Ester Impey
1849–1931♂ Benjamin Roydhouse
1854–1919♀ Ellen Mary Layton
1819–1873♂ Thomas Roydhouse
1819–1895♀ Esther Robbins
1790–1874♂ Thomas Roydhouse
1790–1861♀ Mary Collins
–♂ Thomas Robbins
–♀ Mary Ann Cliford
1826–♂ Frederick Layton
1829–♀ Elizabeth Penchon
1862–1935♂ David Impey
1864–1952♀ Sarah Ann White
1832–1881♂ David Impey
1838–♀ Emma Gadd
1786–1849♂ John Impey
1791–1858♀ Frances Wright
–♂ J. G. Mattison