Margaret was born 16 January 1844 in County Down, Ireland to John McLeavy (1806-1897) and Mary Scandrett (1812-1868) . She married John Walker (1833-) 9 June 1864 .
Children
| Name | Birth | Death | Joined with |
| John Walker (1866-) | |||
| Thomas Walker (1869-1871) | |||