Hammond, John Henry, Jr. (15 December 1910–10 July 1987), critic and producer of jazz and popular music, was born in New York City, the son of John Henry Hammond, corporate lawyer, and Emily Vanderbilt Sloane. Born to privilege, Hammond used his wealth and position, along with considerable resourcefulness and conviction, to promote primarily black music through the 1940s in ways that profoundly influenced its development and international acceptance. He later branched out to produce important folk and rock recordings....
