Marshall Trimble

Marshall Trimble is Arizona’s official historian, board president of the Arizona Historical Society and vice president of the Wild West History Association. His latest book is Arizona’s Outlaws and Lawmen; History Press, 2015. If you have a question, write: Ask the Marshall, P.O. Box 8008, Cave Creek, AZ 85327 or e-mail him at

photograph of cowboy Rex Allen dressed in yellow on horse Koko

Rex Allen The Arizona Cowboy.

They call him the “Last of the Silver Screen Cowboys.” They might have added he was also the only one of the famous sing…