[Eugene] McCarthy prevailed in Pennsylvania and Massachusetts. RFK won in Nebraska and South Dakota. It came down to Oregon on May 28 and California on June 5: the insurgent still standing would take on the Humphrey Machine. The drama was inescapable. The tousle-haired First Brother, traveling through Oregon in JFK's old bomber jacket with his brood of photogenic children and their cocker spaniel, Freckles, scampering down the jet gangway ahead of Bobby and whatever local pol was by his side; the intense former college professor, the "man the people found" and the "Clean for Gene" hordes that followed him, a piercing wind of idealism in a low-down and dirty age. Shirley MacLaine, Sammy Davis, Bobby Darin, Peter Lawford, Sonny and Cher, superstar Olympic decathlete Rafer Johnson, and football star Rosey Grier traveled with Kennedy. McCarthy campaigned with Elaine May, Tony Randall, Eli Wallach, and Robert Ryan -- and as a reproach to Kennedy, who, McCarthy fan Mary McGrory wrote, "thinks the American youth belongs to him as the bequest of his brother," Dustin Hoffman, star of the anti-grown-up hit The Graduate.
I know most of these names but would have to consult Wikipedia for Robert Ryan.