Harry Alonzo Longabaugh (1867 – November 7, 1908), better known as the
Sundance Kid, was an
outlaw and member of
Butch Cassidy's Wild Bunch in the
American Old West. Longabaugh likely met Butch Cassidy (real name
Robert Leroy Parker) after Parker was released from prison around 1896. Together with the other members of "The Wild Bunch" gang, they performed the longest string of successful train and
bank robberies in American history.