Brothers and horsemen William "Bill" Dorrance (January 19, 1906 – July 20, 1999) and Tom Dorrance (May 11, 1910 – June 11, 2003) are considered among the founders of the modern natural horsemanship movement. Born and raised on an Oregon cattle ranch with a background in the Great Basin "Buckaroo" tradition, they promoted natural, gentle methods of horse training, emphasizing "feel" of the horse and observation of its responses to the handler. Bill Dorrance, True Horsemanship Through Feel Tom Dorrance, True Unity: Willing Communication Between Horse and Human