Elinor Donahue (born April 19, 1937) is the actress who portrayed Stan Zbornak's third wife Katherine in the episode of The Golden Girls titled "Stan Takes a Bride". The naturally red-headed Donahue played Robert Young's eldest/popular daughter, Betty Anderson, on the 1950s sitcom, Father Knows Best, which has proved to be her best known acting role to date. She was married for nearly thirty years to producer Harry Ackerman, whom she met on the set of that series. She and Harry Ackerman had three children together: Peter, James, and Christopher Ackerman.