"Three Sermons" by Patrick Henry Greenleaf is a collection of three sermons by the well-known American churchman of the mid-19th century, and includes:

Sunday, a Christian Festival. A Sermon Delivered in St. Paul's Church, November 14, 1858. By Patrick Henry Greenleaf, Rector of St .Paul's Church. The Office of Music in the Church of God. A Sermon Delivered in St. Paul's Church, Cincinnati, on the Fifth Sunday after Trinity, 1856. By P.H. Greenleaf, D.D., Rector of the Church. The Substance of a Sermon, Delivered in Saint John's Church, Charlestown, (Mass.), February 19, 1843. By Patrick Henry Greenleaf (1807-1869), Rector of the Church (1841-1851).

Patrick Henry Greenleaf (1807-1869), born in Maine, was the son of famed American lawyer and jurist Simon Greenleaf (1783-1853). He was a graduate of Bowdoin College, where he was a classmate of Henry Wadsworth Longfellow and Nathaniel Hawthorne and other 19th century luminaries, and after college became a practicing lawyer for a few years, before going into the ministry. For several years Greenleaf was the Rector of St. John's Church, Charlestown, Mass.; also St. Paul's Church, Cincinnati, Ohio, and in 1862 became Rector of Emmanuel Church in Brooklyn, New York, where he died at the age of 62, on June 21, 1869.