Between the World Wars the Oklahoma National Guard was frequently called to state duty. In 1921 the guardsmen were rushed to the Tulsa Race Riot. Gov. Jack C. Walton used the troops to prevent the legislature from convening during his impeachment. Gov. William H. Murray dispatched the National Guard thirty-four times during his administration, and Gov. Ernest W. Marland used guardsmen to allow the drilling of oil wells on the Capitol grounds in Oklahoma City.