Usually known as "Mitch," Mitchell in 1907 began work as a ranch hand in [[New Mexico]]. Soon, he was sketching scenes of [[cowboy]] and western life and drawing political cartoons for [[newspaper]]s. After [[United States Army]] service in [[World War I]], he traveled to [[New York City]], where he studied under Harvey Dunn at the Grand Central School of Art. By 1940, he had created more than 160 cover paintings for Western pulp magazines.<ref name=santafe>{{cite web|url=http://www.santafetrailscenicandhistoricbyway.org/mitch.html|title=A.R. Mitchell Museum|publisher=santafetrailscenicandhistoricbyway.org|accessdate=November 4, 2010}}</ref> During the summers, Mitchell continued to paint in the American Southwest and often invited his mentor Dunn to come to Colorado to sketch the landscapes.<ref name=mitchell>{{cite web|url=http://www.armitchell.org/MitchBio.htm|title=Arthur Roy Mitchell Biography|publisher=armitchell.org|accessdate=September 5, 2010}}</ref> | Usually known as "Mitch," Mitchell in 1907 began work as a ranch hand in [[New Mexico]]. Soon, he was sketching scenes of [[cowboy]] and western life and drawing political cartoons for [[newspaper]]s. After [[United States Army]] service in [[World War I]], he traveled to [[New York City]], where he studied under Harvey Dunn at the Grand Central School of Art. By 1940, he had created more than 160 cover paintings for Western pulp magazines.<ref name=santafe>{{cite web|url=http://www.santafetrailscenicandhistoricbyway.org/mitch.html|title=A.R. Mitchell Museum|publisher=santafetrailscenicandhistoricbyway.org|accessdate=November 4, 2010}}</ref> During the summers, Mitchell continued to paint in the American Southwest and often invited his mentor Dunn to come to Colorado to sketch the landscapes.<ref name=mitchell>{{cite web|url=http://www.armitchell.org/MitchBio.htm|title=Arthur Roy Mitchell Biography|publisher=armitchell.org|accessdate=September 5, 2010}}</ref> |