Harry Kirby McClintock (8 October 1882 - 24 April 1957), also known as "Haywire Mac," was an American singer and poet. Born in Knoxville, Tennessee, "the son of a railroad cabinetmaker and nephew of four boomer trainmen. His drifting began when he ran away from home as a boy to join a circus. He railroaded in Africa, worked as a seaman, saw action in the Philippines as a civilian mule-train packer, supplying American troops with food and ammuniton, and in 1899 found himself in China as an aide to newsmen covering the Boxer Rebellion. Back in the States, he hired out to the Pennsy in the Pittsburgh area, and from there he took the boomer trail as railroader and a minstrel. Mac lived an adventurous life and never lost his sense of humor".