Walter Kirn is an American novelist, literary critic, and essayist.Kirn's family joined The Church of Jesus Christ of Latter-day Saints when he was twelve, but Kirn is no longer affiliated with the church. Kirn married Maggie McGuane, a model and the daughter of actress Margot Kidder and novelist Thomas McGuane, in 1995. Kirn was 32 at the time; McGuane was 19. The couple had two children, Masie and Charlie, and are now divorced.