History of McConnellsburg, (Fulton County) Pennsylvania United States of America

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John Thomas Duffield, clergyman, was born at McConnellsburg, Pa., Feb. 19, 1823; son of William Duffield; grandson of Samuel Duffield; and a descendant of George Duffield of Pequea, Lancaster county, Pa., whose son, the Rev. George Duffield, was assistant chaplain of the Continental congress. He was graduated from the College of New Jersey in 1841 and was director of the mathematical department in Union academy, Philadelphia, Pa, 1841-42. He attended the Princeton theological seminary, 1842-44, and in 1845 became tutor of Greek in the College of New Jersey. In 1847 he was advanced to the adjunct professorship of mathematics, and in 1854 to the full chair. He was professor of philosophical mechanics and mathematics, 1862-73, and in the latter year became professor of mathematics. Meanwhile, having been ordained a Presbyterian clergyman, he acted as stated supply of the second Presbyterian church at Princeton, 1850-52, and continued to do occasional pulpit work. He was moderator of the Synod of New Jersey in 1866. He received the degree of S.T.D. from Princeton in 1873 and that of LL.D. from Lake Forest university in 1890. He published: The Princeton Pulpit (1852); Second Advent (1866); The Philosophy of Mathematics (1866); Evolution as it Respects Man and the Bible (1878). He died in Princeton, N.J., April 10, 1901.

From: Twentieth Century Biographical Dictionary of Notable Americans, Johnson, Rossiter, editor

History of McConnellsburg, (Fulton County) Pennsylvania

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