Elinor Donahue

Elinor Donahue (born Mary Eleanor Donahue, April 19, 1937) is an American actress, best known today for playing the role of Betty Anderson, the eldest child of Jim and Margaret Anderson on the 1950s American sitcom Father Knows Best.
Donahue was born in Tacoma, Washington, the daughter of Doris Genevieve (née Gelbaugh) and Thomas William Donahue on April 19, 1937.
Appearing in dancing-chorus film roles from the age of five, Donahue was at one point a ballet-school classmate of future Fred Astaire partner Barrie Chase. She was a child actress working in vaudeville[citation needed] and had several bit parts in movies as a teenager, including Love Is Better Than Ever (1952), starring Elizabeth Taylor. She played one of the daughters in Three Daring Daughters in 1948 and appeared as Mamie Van Doren's sister in Girls Town (1959).