Jack Weinstock, a native New Yorker who attended Columbia College and was a graduate of NYU's Bellevue Medical College, was in private life a doctor. He did not start to write professionally until he met his collaborator Willie Gilbert, first as a patient and then as a friend. In addition to his successful writing career, "Dr. Jack" (as Weinstock's friends called him) successfully lived two lives, one as author and one as doctor. He was medical director of a life insurance company, surgeon at two hospitals, and had a Fifth Avenue medical practice. Jack Weinstock died in 1969.