Blonde, vivacious and obviously talented, Shirley Ross had the promisings of a big musical film star, but her career remained strictly second-string throughout her fairly short career. She is best remembered through her pairing with an entertainment legend: Shirley was afforded the opportunity of duetting with Bob Hope on the song "Thanks for the Memory" in the splashy musical The Big Broadcast of 1938. The song, of course, became Bob's beloved signature tune.…