1952–♀ Diana L. Alexander | | |
| | 1933–♀ Louisa Frances Foulger –♂ Reginald Charles Alexander | | | | 1904–1972♂ Frederick Arthur Foulger 1906–2007♀ Louisa Charlotte Lillian Roydhouse | | | | 1876–♂ Arthur Frederick Foulger 1879–♀ Emily Mary A. Boot |
| | | 1875–1936♂ Frederick William Roydhouse 1876–1902♀ Ellen Elizabeth Curtiss 1871–1934♀ Louisa Frances Parker | | | | 1844–1918♂ Joseph Thomas Roydhouse 1844–1930♀ Charlotte Pocock | | | | 1816–1849♂ Thomas Henry Roydhouse | | |
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| | | 1838–♂ Joseph David Curtiss |
| | | 1846–♂ James Thomas Parker |
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