Donahue weighed in at around 400 pounds, and his gluttony eventually killed him. He went to San Francisco in the 1960s where he created the FM Progressive Rock format. He and Mitchell also founded Autumn Records, which hosted the Beau Brummels and the Mojo Men. They sold it to Warner Brothers for a sizeable sum.
Mitchell went on to KHJ in Los Angeles under the name Bobby Tripp. He died of leukemia there in 1968.
A lot of major names passed through WIBG in those days: Jim Stagg, Dean Tyler, Scotty Brink, Sean Casey (under his real name, Ray Gilmore), Joey Reynolds and Bill Gardner. (I worked with Gardner in Seattle in the early 1970s.)