Tommy Dorsey (1905 – 1956) was a jazz trombonist and bandleader in the Big Band era. Thomas Dorsey was born in Shenandoah, Pennsylvania and is the younger brother of Jimmy Dorsey. He worked with many bands in the New York City area starting in the 1920s, including the bands of Rudy Vallee, Vincent Lopez, and Paul Whiteman. With brother Jimmy, he led the Dorsey Brothers Orchestra until they split up (with some acrimony) in 1935. The brothers also appeared as session musicians on many jazz recordings.