William Pierson Merrill (1867–1954) was an American Presbyterian clergyman, pacifist, author, and hymn writer.
[1] He is probably best remembered as the author of several well-known hymns, including "Rise Up, O Men of God".
Upon his ordination in 1890, Merrill became pastor of Trinity Presbyterian Church in Chestnut Hill, Pennsylvania, where he served until 1895.
[5] Merrill was named the first president on the Church Peace Union, an organization of religious, academic, and political leaders aimed at promoting pacifism.
[10] Merrill died June 19, 1954, in New York City, and is buried at Woodlawn Cemetery, in the Bronx.