With Shirley Jones & his 3 half-brothers

From left are: Shaun Cassidy, Shirley, David Cassidy, Patrick Cassidy and Ryan Cassidy.

Actress Shirley Jones poses for a family portrait with her children at a testimonial dinner in Los Angeles on Sunday, Oct. 8 1979, honoring Ms. Jones for her outstanding service as the National Leukemia Broadcast Council's National Chairwoman.

Ms. Jones was formerly married to the boys' father, actor Jack Cassidy. The National Leukemia Broadcast Council is an organization of volunteers who fight leukemia by producing media fund raising events.