Bridget Byrne was born circa 1832 in Roscommon County, Ireland to Patrick Byrne and Margaret Wynn and died 4 June 1875 Woollahra, Sydney, New South Wales, Australia of unspecified causes.
Wedding at St Mary's Cathedral, Sydney (Roman Catholic). Bridget was a Catholic and George was a member of the Protestant church according to the wedding certificate. Witnessed by Charles and Mary Dean both of Sydney the minister being J E Gourbeillon and witnesses to all marks was J P B Casey.
According to her death certificate Bridget had spent 26 years in New South Wales and she died at the age of 42 - hence she could have been 16 when she arrived in New South Wales.
Children
| Name | Birth | Death | Joined with |
| George Muir(1853-1917) | |||
| John Joseph Muir(c1855-) | |||
| Henry Muir(1857-) | |||
| Mary Ann Muir (1859-1886) | |||
| Margaret Hilda Muir (1860-1942) | 1860 Paddington, New South Wales, Australia | 14 November 1942 Randwick, New South Wales, Australia | Joseph John Palmer (1859-1900) |
| William John Muir(1862-) | |||
| Maria Muir (1865-1866) | |||
| Frederick Muir(1867-1893) | |||