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W.J. Erdman

William Jacob Erdman (February 21, 1834 – January 27, 1923) was an American preacher, Presbyterian minister, and author whose leadership in the premillennialist and holiness movements of the late 19th century bridged evangelical fervor with scholarly exposition. Born in Allentown, Pennsylvania, to John Erdman and Sarah Wunderly, he grew up in a German Reformed family before moving with his parents to western New York at age 11. Converted at 16 during an 1850 revival meeting in Rochester, New York, he graduated from Hamilton College in 1856 with a B.A., then studied at Union Theological Seminary in New York City (1856–1858), where he was ordained in 1860 by the Presbytery of Buffalo. Marrying Henrietta Rosenbury in 1860, he had six children, including Charles Rosenbury Erdman, a future Princeton theologian. Erdman’s preaching career began at Jefferson Presbyterian Church in Jefferson, New York (1860–1864), followed by pastorates in Jamestown, New York (1864–1870), and Dwight L. Moody’s Chicago Avenue Church in Chicago (1870–1874). Known for his clear, earnest sermons, he became a key figure in the Niagara Bible Conference (1876–1897), advocating premillennialism—the belief in Christ’s imminent return before a literal thousand-year reign. From 1875 to 1880, he served as superintendent of the New York Presbytery’s Home Mission, planting churches across the state, then pastored Second Presbyterian Church in Germantown, Pennsylvania (1880–1890), growing its congregation significantly. After retiring from regular ministry in 1890, he devoted himself to writing and itinerant preaching, speaking at holiness conventions like Keswick until 1900.