Buck Barrow partly due to the lobbying efforts of his wife and his mother. Upon his release, March 22, 1933, Buck Barrow, in the company of Blanche, joined his younger brother Clyde, Bonnie Parker, and W. D. Jones in Joplin, Missouri where he participated in several armed robberies. On April 13, 1933, Buck, Clyde, and W. D. Jones participated in a shootout with law enforcement officers at Joplin, Missouri. Two officers, Newton County Constable Wes Harryman and Joplin City Motor Detective Harry McGinnis, were killed. On June 23, 1933, Buck and W. D. Jones killed Alma, Arkansas City Marshal Henry D. Humphrey
Parker Bros. first hammerless guns were offered for sale. Parker guns were offered in 8, 10, 11, 12, 14, 16, 20, 28 and .410 gauges. There is an experimental example known to have been produced in 18 gauge. All else being equal, the smaller the gauge the more scarce and valuable a Parker gun would be in today's world. Parker guns were sold at various price points; the basic gun being the same design with the price increasing as production costs (engraving, fit and finish, quality of wood grain, barrel steel, etc.). These grades included: dollars grades, Trojan & VH through A-1