Family: Rev. Maurice John George Ponsonby, 4th. Baron de Mauley / Hon. Madeleine Emily Augusta Hanbury-Tracy (F3892)
m. 29 Dec 1875Lady Maria Jane Elizabeth Ponsonby (1819-1897) 
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| Alice Barbara Maria Ponsonby (1840-1846) |
Hon. Emily Priscilla Maria Ponsonby (1841-1926)  |
George Walter Charles Ponsonby (1844-1845) |
| Frederick John William Ponsonby (1847-1933) |
| Mary Alice Ponsonby (1849-1872) |
| Hon. Edwin Charles William Ponsonby, J.P., D.L. (1851-1939) |
| Helen Geraldine Maria Ponsonby (1852-1949) |
| Diana Isabel Maria Ponsonby (1855-1875) |
| Hon. Madeleine Emily Augusta Hanbury-Tracy (1852-1938)
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| Captain Gerald Maurice Ponsonby (1876-1914) |
| Hubert William Ponsonby, 5th. Baron de Mauley (1878-1962) |