<Tr> <Th> Years active </Th> <Td> 1964--1998 </Td> </Tr> <Tr> <Th> Spouse (s) </Th> <Td> T.J. Escott (m . 1973; div. 1983) </Td> </Tr> <P> Mary Frann (born Mary Frances Luecke, February 27, 1943--September 23, 1998) was an American stage, film and television actress . Frann is best known for her role as Bob Newhart's wife, Joanna Loudon, on the CBS sitcom Newhart, which aired from 1982 to 1990 . </P> <P> Born in St. Louis, Missouri, Frann was a child model and appeared in commercials for a local television station while she attended Nerinx Hall High School . At the age of 18, she was voted Missouri's "Junior Miss". She went on to win the 1961 national title of America's Junior Miss and earned a college scholarship to study drama at Northwestern University . As America's Junior Miss, she starred in a Jam Handy educational film (Prom: It's a Pleasure) extolling the etiquette and fun of the high school prom . While attending Northwestern, Frann worked as a weather reporter for the NBC station in St. Louis . After a year, she dropped out of Northwestern and moved to Chicago where she co-hosted a morning show on an ABC affiliate . While working as a host, Frann worked in local theatre productions and began working in television and films . In 1964, Frann made her television debut in an episode of the Kraft Suspense Theatre . That same year, she appeared in the television movie Nightmare in Chicago, starring Carroll O'Connor . In 1966, Frann made her film debut in the low budget musical drama Nashville Rebel, starring Waylon Jennings . </P>

Who played joanna on the bob newhart show