This experienced, critically-praised stage performer appeared occasionally in films, usually as sweet-tempered, soft-spoken types.The daughter of acclaimed theatrical set designer-architect Norman Bel Geddes, she began her stage career as a teenager. Bel Geddes made her New York debut in "Out of the Frying Pan" (1941) and went on to earn awards for "Deep Are the Roots" (1945). She later co-starred in "The Moon Is Blue" (1951), originated the role of Maggie in Tennessee Williams' "Cat on a Hot Tin Roof" (1955) and played the title role in Jean Kerr's "Mary, Mary" (1961). Her last stage