John Gresham Machen was born at Baltimore on July 28, 1881, the middle of three sons born to a southern lawyer, Arthur Machen, whose brother had fought for the Confederates in the Civil War. Some time in his youth Machen came to a personal faith in Christ, but there was no dramatic conversion experience. In later years he was not even able to recall the date (4 January 1896) when he had publicly professed faith and become a church member in Franklin Street Presbyterian Church. He was educated at Johns Hopkins and Princeton Universities, Princeton Theological Seminary and the Universities of Marburg and Göttingen in Germany.
Machen taught at Princeton Seminary from 1906 until its reorganisation in 1929. Then he left to help found Westminster Theological Seminary in Philadelphia, where he served as professor of New Testament until his death from pneumonia on New Year’s Day, 1937. In 1936 Machen was instrumental with others in founding what became the Orthodox Presbyterian Church, and was its first Moderator.Ned B. Stonehouse, J. Gresham Machen: A Biographical Memoir (Banner of Truth, 1987); Geoffrey Thomas, ‘J. Gresham Machen’, The Banner of Truth, No. 214 (July 1981), pp. 12-20 and Nos. 233-238 (February-July 1983) .]