Frederic Lansing Day was an American playwright b. September 28, 1890 in Newton, Massachusetts d. 1981 in Wilton, New Hampshire. Frederic Day, the son of Henry Brown Day, the founder of the Day Trust Company, was a Socialist and Unitarian. He graduated from Yale in 1912 and married Katharine Munroe (b. 1891 d. 1956) whom he later divorced. They had a home built in Cambridge, Massachusetts in 1920. He later remarried to Frances Palfrey (b.1909 d. 2004). Frederic Day worked briefly as a journalist and as an employee in his father's bank. He published at least four plays: The Makers of Light: A Play in Three Parts (1925) originally produced by The 47 Workshop of Harvard and published by Brentano's, The Slump (1920), also produced by The 47 Workshop, Heaven is Deep, and The fall of the house of Usher: a dramatization in seven scenes of Edgar Allan Poe's short story.