Shaun Cassidy shared a sweet photo of mom Shirley Jones with her birthday cake in celebration of the star's 91st birthday on March 31.

David was born to Jack Cassidy and his first wife, Evelyn Ward, in 1950. Shaun was born to Jack and his second wife, Shirley ...

Jeff Hochberg/Getty Born in New York City in 1950, Cassidy grew up surrounded by show business. His father, Jack Cassidy, was a well-known actor, and his stepmother, Shirley Jones, co-starred ...

In a new post, Shaun Cassidy recalled childhood memories with late big brother David Cassidy on what would have been his 75th ...

About the Album: In 1959, the release of Shirley Jones and Jack Cassidy’s new album, Marriage Type Love was announced with great fanfare. The cover was prepared and all of the audio was recorded ...

an Oscar win and her hit TV series 'The Partridge Family' Oh, what a beautiful day — because Shirley Jones is 91! Jones’ son Shaun ... David Cassidy (she married his father Jack Cassidy ...

David was born to Jack Cassidy and his first wife, Evelyn Ward, in 1950. Shaun was born to Jack and his second wife, Shirley Jones, in 1958. "There were no better nights than when David came to ...

Oh, what a beautiful day — because Shirley Jones is 91! Jones’ son Shaun Cassidy shared a sweet birthday ... Howard and Glenn Ford. Jones and Jack, who also share sons Patrick and Ryan ...

Shaun Cassidy, Shirley Jones, David Cassidy, Ryan Cassidy and Patrick Cassidy in 2009 Related: Shirley Jones' Son Ryan Cassidy Releases Children's Book on Day with James Cagney: 'He Was Bigger Than ...