Desperados by Ron Hansen

At age 65, Emmett Dalton, the sole survivor of the infamous Dalton gang makes a living by selling his outrageous adventure stories to Hollywood. Desperadoes details his memories of the murders, bootlegging and thievery he and his posse committed. The grit and excitement of these violent times are expertly evoked by the sharp pen and authentic voice of HarperCollins' bestselling author Ron Hansen.

Image and book description from GoodReads.com

This author is an Oklahoman, and this book was written about his adventures in Oklahoma. Sounds like a great book.
Remember you never have to pay to RSVP or attend.