Harriet Hollis Blake was born 11 December 1820 in Bishop's Stortford, Hertfordshire, England, United Kingdom to William Hollis (1785-1857) and Maria Wooldridge (1788-1859) and died 31 October 1908 St. George, Washington County, Utah, United States of unspecified causes. She married Benjamin Frederick Blake (1815-1884) 31 May 1841 in St Michael Church, Southampton, Hampshire, England.
Children
| Name | Birth | Death | Joined with |
| Fredrick Blake (1842-1916) | 15 January 1842 Downton, Whiteparish, Wiltshire, England, United Kingdom | 4 February 1916 St. George, Washington County, Utah, United States | Emily Green (1845-1926) Eliza Barnett (1861-1942) |
| Mariah Sophia Blake (1843-1847) | |||
| Caroline Lucy Blake (1845-1893) | |||
| Edward Blake (1847-1848) | |||
| Elizabeth Blake (1849-1908) | |||
| George Blake (1851-1853) | |||
| Emma Blake (1853-1874) | |||
| Benjamin Blake (1855-1933) | 27 June 1855 Salt Lake City, Salt Lake County, Utah, United States | 2 June 1933 St. George, Washington County, Utah, United States | Ann Elizabeth Taylor Ellicock (1864-1904) Rosena Eliza Blickenstorfer (1875-1964) |
| Jane Blake (1857-1947) | |||
| Harriet Blake (1860-1926) | |||
| Ann Eliza Blake (1862-1863) | |||
| Henry Blake (1864-1865) | |||
| Isaac Blake (1866-1866) | |||
Siblings