Robert Cringan was born 5 March 1821 in Newmonkland Parish, Lanarkshire, Scotland, United Kingdom to Robert Cringan (1800-) and Elizabeth Ellis (1800-) . He married Janet Thom (1826-) 1 October 1841 in Scotland, United Kingdom.
He married Janet Thom, who had been born in Highridgend, Newmonkland Parish, Lanarkshire, Scotland, on Oct. 1, 1841. They had six children between 1842 and 1858.
Children
| Name | Birth | Death | Joined with |
| Janet Cringan (1842-1911) | |||
| Elizabeth Cringan (1849-1906) | |||
| Robert Cringan (c1852-1935) | 1852 Scotland, United Kingdom | 1935 | Mary Russell (1856-1943) |
| Jane Cringan (1858-) | |||
| Alexander Thom Cringan (1860-1931) | |||
Footnotes (including sources)
| ‡ General |
| ¢ Children |