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Lauren Chapin (born May 23, 1945, Los Angeles, California) is an American former child actress, most remembered for her role as the youngest child "Kathy Anderson" (nicknamed "Kitten") in the television show Father Knows Best, which was produced between 1954 and 1960. Chapin was awarded five Junior Emmys for Best Child Actress. Two of her older brothers were also child stars, Billy and Michael Chapin.

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