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
Bonnie and Clyde had promised Ted Hinton this would total some $26,000, but most of the state, county, and other organizations that had pledged reward funds reneged on their pledges. In the end, each lawman earned $200.23 for his efforts. They collected memorabilia. The ambush of Barrow and Parker proved to be the beginning of the end of the "public enemy era" of the 1930s. By the summer of 1934, new federal statutes made bank robbery and kidnapping federal offenses; and the growing coordination of local jurisdictions by the FBI, plus two-way radios in police cars, combined to make the outlaw bandit sprees