Powell, the first Black US secretary of state, was receiving treatment at Walter Reed National Medical Center, his family said. He was 84.
The Georgia Democrat, known as the "conscience of Congress," spent most of his life on the front lines of the fight for democracy.
She devoted much of her life to championing causes including literacy and cancer research.
Fabray, a versatile talent and television pioneer, played the mothers of Mary Tyler Moore, Bonnie Franklin and her own niece, Shelley Fabares.
It is a time of generational shift and Chiba’s life offers many lessons as the baton of freedom and democracy is passed to a new generation.
Cassidy’s role as a heartthrob in the hit TV show “The Partridge Family” launched his career.
The designer made her mark on the first season of the reality TV series.