Thomas D. Wilthew 1917–1951 | | |
| | Frances Annie Blackett 1883–1956 | | | | | Robert Blackett 1853–1921 Ellen Cunningham 1852–1882 Maria Jane Hall 1852–1924 | | | | Robert Blackett 1828–1882 | | | | George Blackett 1802–1874 | | | | Elizabeth (Betty) Swindale 1779– | | |
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| | | | Mary Ann Aitken 1821–1906 |
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