| PARENT (M) William Horsford Mortimer |
| Birth | 27 Sep 1780 | Bristol, Gloucestershire, England |
| Death | Jan 1861 | Islington, London |
| Marriage | 1815 | to Sarah Derrick |
| Marriage | 30 Nov 1825 | to Sarah Derrick at Saint Bride Fleet St ,London,London,England |
| Father | John Mortimer |
| Mother | Mary Ann Derick |
| PARENT (F) Sarah Derrick |
| Birth | Nov 1798 | St George, Bristol, Gloucestershire, England |
| Death | May 1840 | St Marylebone Workhouse, Marylebone, Middlesex, England |
| Marriage | 1815 | to William Horsford Mortimer |
| Marriage | 30 Nov 1825 | to William Horsford Mortimer at Saint Bride Fleet St ,London,London,England |
| Father | William Derrick |
| Mother | Elizabeth Williams |
| CHILDREN |
| F | Elizabeth Oldfield Mortimer |
| Birth | 1831 | Islington, Middlesex, England |
| Death | Jan 1901 | Islington, London |
| Marriage | | to ? |
| M | James Alfred Mortimer |
| Birth | 23 Jul 1837 | Islington, London |
| Death | 16 Aug 1837 | Islington, London |
| M | William Henry Mortimer |
| Birth | 2 Sep 1826 | Islington, London, England |
| Death | 24 Aug 1868 | Camberwell, Surrey, England |
| Marriage | 8 Jun 1846 | to Elizabeth Agnes Packer at St Leonards, Shoreditch, London, England |
| M | John Mortimer |
| Birth | 3 Sep 1832 | John Street, Islington, Middlesex, England |
| Death | | |
| M | George Edward Mortimer |
| Birth | 14 Dec 1834 | John Street, Islington, Middlesex, england |
| Death | | |
| F | Susan Mortimer |
| Birth | 1831 | Islington, London, England |
| Death | | |
| F | Mary Ann Mortimer |
| Birth | 1827 | Islington, London |
| Death | 1908 | Islington, London, England |
| Marriage | 27 Jan 1851 | to James Greenwood at St Mary, Islington, England |
