Shirley Mae Jones  is a singer and actress of stage, film and television. She
starred in a number of well-known musical films, such as Oklahoma! (1955),
Carousel (1956), and The Music Man (1962). Shirley won the Academy Award
for Best Supporting Actress for playing a prostitute in Elmer Gantry (1960). She
is probably best known as Shirley Partridge, the widowed mother of five children
in the ABC-TV sitcom  series The Partridge Family (1970–1974), co-starring
her real-life stepson David Cassidy, son of Jack Cassidy.

Shirley Jones with Burt Lancaster in Elmer Gantry

Shirley Jones in The Partridge Family