Francis William Pitt Greenwood, an American clergyman, born in Boston, Feb. 5, 1797, died there, Aug. 2, 1843. He graduated at Harvard college in 1814, and immediately commenced the study of theology under the direction of Dr. Ware, approving in the main, then and for the rest of his life, the doctrines prevalent in Boston under the name of liberal Christianity. In October, 1818, he became pastor of the new South church and society in Boston; but after a single year his course was arrested by a pulmonary disease. He went to England in 1820, but, not fully recovering his health, resigned his pastorate. He returned in the autumn of 1821, passed a little more than two years at Baltimore, preached occasionally, and wrote for and edited for nearly two years a periodical called the "Unitarian Miscellany." In 1824 he became colleague of Dr. James Freeman, pastor of King's chapel, Boston, who with the consent and cooperation of his society had revised the "Book of Common Prayer" there used so as to exclude the recognition of the Trinity. Bodily infirmities compelled Dr. Freeman to give up the pulpit in 1827, and Mr. Greenwood took the full charge. He had a strong taste for the natural sciences, conchology and botany being his especial favorites, and he was one of the first members of the Boston society of natural history.

A return of ha3morrhage of the lungs compelled him to make a voyage to Cuba in 1837. While confined to a sick chamber the year before his death, ho prepared for publication "Sermons of Consolation" (1842). He was also the author of "History of King's Chapel" (Boston, 1833), "Lives of the Twelve Apostles" (1838), "Sermons to Children," and numerous contributions to periodicals. After his decease Samuel A. Eliot edited two volumes of his sermons from the MSS., and prefaced them with a memoir of the author;' and a volume of his miscellaneous writings was published by his son (184G).