Kathleen Agnes Kennedy 1920–1948 William John Robert Cavendish Marquess of Hartington 1917–1944 | | | | Joseph Patrick Kennedy 1888–1969 |
| | | Edward William Spencer Cavendish 10th Duke of Devonshire 1895–1950 Lady Mary Alice Gascoyne-Cecil Duchess of Devonshire C.B.E. G.C.V.O. 1895–1988 | | | | Victor Christian William Cavendish 1868–1938 | | | | Spencer Compton Cavendish 1833–1908 | | | | Blanche Georgiana Howard 1812–1840 | | |
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