The grand old man of British jazz, trumpeter and bandleader Humphrey Lyttelton spearheaded the postwar trad jazz revival before renouncing the movement in favor of more contemporary and restless creative vision. A larger-than-life figure, he also excelled as a writer and cartoonist, and for decades was a fixture of radio, serving as the hilariously deadpan host of the long-running I'm Sorry, I Haven't a Clue. Born in Eton on May 23, 1921, Lyttelton was the product of a distinguished and wealthy family -- a lifelong jazz enthusiast, he received his first trumpet at age 15 and f...