High Quality Content by WIKIPEDIA articles! Harry Alonzo Longabaugh (1867 – c. November 6, 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.