Hon. Gerald Henry Brabazon Ponsonby
(Notes: You may have to scroll down or right to see chart.)
| Mabel Elizabeth Ponsonby | 
| Mabel Elizabeth Ponsonby | |
| B: | Between 1 Apr 1883 and 30 Jun 1883 | 
| Ellesborough, Buckinghamshire, England | |
| D: | Aft 1891 | 
| Eileen Cecilia Ponsonby | 
| Eileen Cecilia Ponsonby | |
| B: | Between 1 Apr 1885 and 30 Jun 1885 | 
| Ellesborough, Buckinghamshire, England | |
| D: | Aft 1919 | 
| Douglas Stewart | 
| Douglas Stewart | |
| B: | Abt 1875 | 
| D: | Aft 1919 | 
| Joan Ponsonby | 
| Joan Ponsonby | |
| B: | 3 Jul 1887 | 
| Ellesborough, Buckinghamshire, England | |
| D: | 9 Jan 1981 | 
| Colchester, Essex, England | |
| Maurice Bevan | 
| Maurice Bevan | |
| B: | 9 Aug 1886 | 
| Mayfair, Westminster, Middlesex, England | |
| D: | 6 Jan 1925 | 
| Stevenage, Hertfordshire, England | |
| Louis George de Hale Ponsonby | 
| Louis George de Hale Ponsonby | |
| B: | 11 Nov 1858 | 
| Mayfair, Westminster, Middlesex, England | |
| D: | 6 Nov 1887 | 
| Littlecote, Wiltshire, England | |
| Elizabeth Susan Leyborne-Popham | 
| Elizabeth Susan Leyborne-Popham | |
| B: | Between 1 Oct 1858 and 31 Dec 1858 | 
| Hungerford District, Wiltshire, England | |
| D: | Between 1 Jul 1935 and 30 Sep 1935 | 
| Axbridge District, Somerset, England | |
| Cecil Edward George Ponsonby | 
| Cecil Edward George Ponsonby | |
| B: | Between 1 Jan 1860 and 31 Mar 1860 | 
| St. George's, Hanover Sq. Middlesex, England | |
| D: | 19 Apr 1877 | 
| Geraldine Sarah Ponsonby | 
| Geraldine Sarah Ponsonby | |
| B: | 7 Mar 1863 | 
| St. George's, Hanover Sq. Middlesex, England | |
| D: | 29 Nov 1944 | 
| Radclive, Buckinghamshire, England | |
| Dermot Robert Wyndham Bourke, 7th. Earl of Mayo | |
| B: | 2 Jul 1851 | 
| D: | 31 Dec 1927 | 
| Elizabeth Hse. Devonshire St. Portland Pl. Middlesex, England | |
| Adela Sophia Georgiana Ponsonby | 
| Adela Sophia Georgiana Ponsonby | |
| B: | Between 1 Apr 1864 and 30 Jun 1864 | 
| St. George's, Hanover Sq. Middlesex, England | |
| D: | Between 1 Jan 1902 and 31 Mar 1902 | 
| Farnham District, Surrey, England | |
  | 
| Hon. Gerald Henry Brabazon Ponsonby | 
| Hon. Gerald Henry Brabazon Ponsonby | |
| B: | 17 Jul 1829 | 
| Ireland | |
| D: | 30 Nov 1908 | 
| Westminster, Middlesex, England | |
| Lady Maria Emma Catherine Coventry | 
| Lady Maria Emma Catherine Coventry | |
| B: | 13 Dec 1836 | 
| London, England | |
| D: | 7 Feb 1912 | 
| Westminster, Middlesex, England | |
