In addition, Simpson had written for periodicals including Esquire, Town & Country, TV Guide, Reader’s Digest, and the New York Times Magazine.HarperReference News Release, "Simpson's Contemporary Quotations." Later in life as a priest, he was also a correspondent for the British publications, The Living Church and Church Times, and authored several books on religion including Veil and Cowl: Writings from the World of Monks and Nuns, Regent of the Sea, The Long Shadows of Lambeth X, Stars in His Crown: Anglican Religious Orders, Discerning God's Will: Lambeth XI, Seasons of the Spirit, and A Treasury of Anglican Art.Simpson.
