Hole-in-the-Wall Gang include a certain way in handling disputes with other gang members, and never stealing from another gang's supplies. There was no leader with each gang adhering to its own chain of command. The hideout was also used for shelter and a place for the outlaws to lay up during the harsh Wyoming winters. Members of the Hole-in-the-Wall Gang included such infamous criminals as Butch Cassidy's Wild Bunch which consisted of Butch Cassidy (aka Robert Leroy Parker), the Sundance Kid (aka Harry A. Longabaugh), Elzy Lay, Tall Texan, 'News' Carver, Camilla 'Deaf Charlie' Hanks, Laura Bullion, George "Flat Nose" Curry, Harvey
Butch Cassidy Railroad chairman E. H. Harriman attempted to meet with Cassidy through his old ally Matt Warner. On August 29, 1900, Cassidy, Longabaugh and others robbed Union Pacific train No. 3 near Tipton, Wyoming, violating Cassidy's earlier promise to the Governor of Wyoming and ending any chance for amnesty. On February 28, 1900, lawmen attempted to arrest Kid Curry's brother, Lonny, at his aunt's home. Lonny was killed in the shootout that followed, and his cousin Bob Lee was arrested for rustling and sent to prison in Wyoming. On March 28, Kid Curry and News Carver were pursued by a posse