Shaun Cassidy/Instagram. Shirley Jones with sons Patrick Cassidy, Ryan Cassidy and Shaun Cassidy. Shirley Jones marked her milestone 90th birthday with her kids and grandkids by her side.

On his Instagram Story, Shaun also shared a photo of his mom, himself and then-child star Ron Howard on the set of 1963’s The Courtship of Eddie's Father, which starred Jones, Howard and Glenn Ford.

In a new post, Shaun Cassidy recalled childhood memories with late big brother David Cassidy on what would have been his 75th birthday. “When David came to visit us on the weekends, my mother ...

Shaun Cassidy, who shared a father with David, posted a black-and-white photo on Instagram to recall the time they spent together as young children.

Legendary heartthrob Shaun Cassidy has big plans on the docket. The former teen idol, 66, whose mom is Partridge Family matriarch Shirley Jones, took to Instagram to make a major announcement on ...

Shaun Freakin’ Cassidy, OK? I’m enough of an extrovert that I will go into a convenience store to buy chips and, five minutes later, end up saying, “What’s your Instagram?” to the clerk.

Presley Ann/Getty; Shaun Cassidy/Instagram. Shirley Jones and Shaun Cassidy (left); Shirley Jones with her birthday cake (right) Oh, what a beautiful day — because Shirley Jones is 91! Jones’ son ...