Mark Vonnegut

Mark Vonnegut is an American pediatrician and author. He is the son of writer Kurt Vonnegut. He is the brother of Edith Vonnegut and Nanette Vonnegut. He described himself in the preface to his 1975 book as "a hippie, son of a counterculture hero, BA in religion, genetic disposition to schizophrenia."