David Noyes Jackson (September 16, 1922 – July 13, 2001) was the life partner of poet James Merrill (1926–1995). A writer and artist, Jackson is remembered today primarily for his literary collaboration with Merrill. The two men met in May 1953 in New York City, after a performance of Merrill's play, "The Bait." Over the course of decades conducting séances with a Ouija board, Merrill and Jackson took down supernatural transcriptions and messages from otherworldly entities. Merrill's and Jackson's Ouija transcriptions were first published in verse form in The Book of Ephraim (printed for the first time in Divine Comedies, 1976, which was awarded the Pulitzer Prize in 1977).
Many critics consider David Jackson to be a kind of co-writer, certainly the catalyst if not the medium, for much of James Merrill's most significant poetic output. The Book of Ephraim (1976), Mirabell: Books of Number (1978), and Scripts for the Pageant (1980) were all written with Jackson's spiritual assistance. Together, they constitute the epic trilogy The Changing Light at Sandover, a 560-page apocalyptic poem published in its entirety in 1982.