Born 3 May 1784 in Charlestown, New Hampshire. Graduated Dartmouth College 1803. Studied law under Jeremiah Mason in Portsmouth and was admitted to the New Hampshire bar c. 1806. Served in the New Hampshire House of Representatives across three terms (1812-1814, 1819-1820, 1823-1827), Speaker 1825-1827. Elected U.S. Representative 1829-1835, U.S. Senator 1835-1841, and 18th Governor of New Hampshire 1842-1844 as a Democrat. Appointed Subtreasurer in Boston 1846-1849. Married Sally Walker Dean in 1813. Five children: Sarah Dean (1814, our direct ancestor), Henry (1817), Nathaniel Dean (1821), Richard (1823), Aaron Dean (1826). Died 5 June 1857 in his birthplace, Charlestown NH.
Occupations
- Lawyer (admitted New Hampshire bar 1806)
- Member of New Hampshire House of Representatives (1812-1814, 1819-1820, 1823-1827)
- Speaker of the New Hampshire House (1825-1827)
- U.S. Representative from New Hampshire (1829-1835)
- U.S. Senator from New Hampshire (1835-1841)
- 18th Governor of New Hampshire (1842-1844)
- Subtreasurer of the United States at Boston (1846-1849)

