Mary Denison Smith Allen was born 20 July 1789 in Pequonnoc, Fairfield County, Connecticut to Denison Smith (1769-1860) and Waity Smith (1770-1853) and died 21 October 1854 New London County, Connecticut of unspecified causes. She married Lewis Allen (1783-1844) 18 September 1805 in Connecticut.
Biography
Lewis Allen (1783-1844) was married Sept. 18, 1805 to Mary Denison Smith.
Mary Denison Smith was born July 20, 1789 in Pequonnoc (Groton) Conn. She was the eldest daughter of Denison and Waty Smith. Her father, Denison Smith was a merchant. He was the seventh child of Col. Oliver and Mary (Denison) Smith. Col. Oliver Smith married his own cousin, Mary Denison, who was the only child of Jabez and Waty (Burrows) Smith. Oliver and Jabez being brothers. Col. Oliver Smith was an officer in the Continental Army during the Revolutionary War. He was born Apr. 27, 1738 and died Aug. 11, 1811. His wife Mary (Denison) Smith died Sept. 17, 1800. Denison Smith died Dec. 27, 1860 at the age of 91 years. His lovely wife Waty, died Aug. 18, 1853, aged 83 years. Both were buried in Smith Lake Cemetery, Pequonnoc (Groton) Conn.
Children
| Name | Birth | Death | Joined with |
| Lewis Allen (1806-1892) | |||
| Mary Allen (1808-1848) | |||
| Frances Elizabeth Allen (1811-1887) | |||
| William Mercer Allen (1812-) | |||
| Harriett Allen (1813-1849) | |||
| Laraine Allen (1817-) | |||
| Frederic Allen (1820-1872) | |||
| Thomas Humphrey Cushing Allen (1822-1900) | 21 September 1822 New London, New London County, Connecticut | 15 July 1900 Lakewood, Chautauqua County, New York | Jane Deverdier Woodruff (1832-1878) Laura Alice Rowe (1853-) |
| Jane Allen (1824-1890) | |||
| Eleanor Caroline Allen (1828-) | |||
| Ann Maria Allen (1831-1832) | |||
Siblings
| Name | Birth | Death | Joined with |
| Mary Denison Smith (1789-1854) | 20 July 1789 Pequonnoc, Fairfield County, Connecticut | 21 October 1854 New London County, Connecticut | Lewis Allen (1783-1844) |