Robert Lowry, 75, a post-World War II author whom Ernest Hemingway once called "one of America's best" but whose frail health forced interruptions in a sporadic writing career. His battlefield experiences during the war formed the basis for many of his novels and short stories, as did his life as an artist in Greenwich Village. His best-known works included "Casualty" in 1946, "Find Me in Fire" and "The Big Cage" in 1949, "The Violent Wedding," in 1953 and three collections of short stories. "That Kind of Woman," a 1959 film starring Sophia Loren and Tab Hunter, was based on one of his stories. In 1950 he won the O. Henry Award for "Be Nice to Mr. Campbell." In Cincinnati on Dec. 5 of the complications of pneumonia.