Shirley Mae Jones (born March 31, 1934) is an American actress and singer. In her six decades in show business, she has starred as wholesome characters in a number of musical films, such as Oklahoma! (1955), Carousel (1956), and The Music Man (1962). She won the Academy Award for Best Supporting Actress for playing a vengeful prostitute in Elmer Gantry (1960). She played the lead role of Shirley Partridge, the widowed mother of five children, in the musical situation-comedy television series The Partridge Family (1970–1974), which co-starred her real-life stepson, David Cassidy, son of Jack Cassidy.

Source: Wikipedia (https://en.wikipedia.org/wiki/Shirley_Jones)