a Congregational minister, the son of Thomas Thacher, Jun., and grandson of Thomas Thacher, the first minister of the Old South Church, was born in Boston in 1677. He graduated at Harvard in 1696, and immediately after his graduation began to teach at Hatfield, and is supposed to have studied divinity under the Rev. William Williams of that place. On Nov. 26, 1707, he was ordained pastor of the Church at Weymouth, where he remained between eleven and twelve years. In January, 1720, he returned to Boston and was installed pastor of the New North Church as colleague with Mr. Webb. Here he labored until his death, Feb. 26,1738. Mr. Thacher published an Election Sermon (1726), and a Sermon on the Death of Mrs. Gee (1730). See Sprague, Annals of the Amer. Pulpit, 1, 266.