Betty Rainey was born 1 March 1786 in Ballyworfy, Hillsborough, County Down, Ireland, United Kingdom to William Rainey and Elizabeth Beatty (1760-) and died 10 May 1880 Oughly, Hillsborough, County Down, Ireland, United Kingdom of unspecified causes. She married Robert Dawson (1796-1880) 9 September 1820 in Annahilt Presbyterian Church, Annahilt, County Down, Ireland, United Kingdom.
Children
| Name | Birth | Death | Joined with |
| Fanny Dawson (1821-) | |||
| William Dawson (1823-) | |||
| John Dawson (1826-) | |||
| Thomas Dawson (1830-) | |||
| Jane Dawson (1835-) | |||
| Elizabeth Dawson (1836-) | 22 February 1836 Edentrillick, Dromore, County Down, Ireland, United Kingdom | Michael Mills (1837-1905) | |
Siblings