Original: She is probably best known as Shirley Partridge , the widowed mother of five children in the situation-comedy television series The Partridge Family ( 1970 & ndash ; 1974 ) , co-starring her real-life stepson David Cassidy , son of Jack Cassidy .
Simplified: She is perhaps most famous for her role as Shirley Partridge on the TV show , The Partridge Family .