Near Dubois, Wy, he was mentored by horse thief/cattle rustler Mike Cassidy. As a butcher in Rock Springs, Wy. he became “Butch” and took on ‘Cassidy’ for Mike.
Although Jubilee Days has expanded well past one day, Laramie still honors Wyoming's induction into the United States in 1890 with a day filled with history, activities and fun.
The annual Butch Cassidy Celebration will be held June 8th at the one jail where the infamous outlaw did time, the Wyoming Territorial Prison State Historic Site in Laramie.