Poor, Daniel was born on June 27, 1789 in Danvers, Massachusetts, United States. Son of Joseph and Mary (Abbott) Poor.
Graduate Dartmouth, 1811, honorary Doctor of Divinity, 1835. Graduate Andover Theological Seminary, 1814.
Ordained to Ministry Presbyterian church, Newburyport, Massachusetts, June 21, 1815. Sent (with others) by American Board of Missions to Colombo, Ceylon, 1816. Missionary to Tillypally, Ceylon, 1816-1823.
Missionary to Batticotta, Ceylon, 1823-1835, founded boys’ boarding school, 1823, Missionary Scientific Seminary, 1826 (important educational center for entire region). Missionary and founder schools Madura, India, 1835-1841. Visited United States, 1848-1850.
Kept journal from which extracts were published in Panoplist and Missionary Herald, Boston, 1817-1855.
Married Susan Bulfinch, October 9, 1815. Married second, Ann Knight, January 21, 1823.