RIVERTON:  Butch Cassidy, My Uncle: Book Signing The Wind River Hotel and Casino invites you to a book signing and presentation by Bill Betenson, author of Butch Cassidy, My Uncle: A Family Portrait on August 29 at 4 p.m. in the hotel lobby. Betenson will talk about the infamous Tipton Train Robbery that occurred on August 29, 1900 in Tipton, WY. This event is considered one of the great robberies that made Butch Cassidy’s Wild Bunch famous in the old west. Betenson wrote a detailed account of the life and times of his great-uncle Robert Leroy Parker aka Butch Cassidy. Betenson became interested in the notorious train and bank robber…