She was born on exactly the same day as another famous actor-singer: Richard Chamberlain, of James Clavell's Shogun fame.
Her former Partridge Family co-star, David Cassidy, once said he had a crush on his stepmother.
Shirley won an Oscar for her supporting role in the 1960 film Elmer Gantry.
Shirley married TV Producer Marty Ingels in 1977.
Shirley has a star on the Hollywood Walk of Fame at 1541 Vine Street.
Shirley attended South Huntingdon High School, Ruffs Dale, PA.
Shirley began singing with the church choir when she was six.
Shirley's parents ran the Jones Brewery in Pittsburgh.
Shirley is a Republican.
Shirley made her big screen debut in the Rogers and Hammerstein musical Oklahoma.
Shirley had all three of her sons (Shaun, Patrick and Ryan) through Casearian section.
Shirley is an only child.
Shirley is the real life step-mother of her Partridge Family co-star David Cassidy. Besides being the only PF members who sang for themselves, they were the only ones who did not lend their voices to Hanna-Barbera's animated version of the series.
Shirley was the winner of the 1952 Miss Pittsburgh Pageant.
She was named after Shirley Temple.
Shirley: I had done 25 motion pictures prior to The Partridge Family and nobody knew my name.
Shirley: Musicals will always remain very important to me because they are classics.
Shirley: I feel very fortunate to have been associated with people such as Rodgers and Hammerstein. I think they were geniuses of their time.
Shirley: I don't read music! I have a good ear, fortunately, but I don't read.
Shirley: Some people pooh-pooh the Oscar. My career had been over because they weren't making musicals anymore. At the time, it was thought that if you were a singer you couldn't act.
Shirley: After I won the Oscar, my salary doubled, my friends tripled, my children became more popular at school, my butcher made a pass at me, and my maid hit me up for a raise.