Interactive tree of Stephen Paul Thurlow
1970–♂ Stephen Paul Thurlow
–♂ Joseph W. Thurlow
1939–♀ Joyce K. Roydhouse
1907–1975♂ Frederick John Richard Thomas Roydhouse
1908–1996♀ Kathleen Ann Cook
1875–1936♂ Frederick William Roydhouse
1876–1902♀ Ellen Elizabeth Curtiss
1871–1934♀ Louisa Frances Parker
1879–♂ Albert John Cook
1877–♀ Catherine Ann Kingman