Columbia subject headings:
Crime--Southwest, Old--History.
Murrell, John A.
Outlaws--Southwest, Old--Biography.
Southwest, Old--Biography.
Southwest, Old--History.
Harvard subject headings:
Crime--Southwest, Old--History.
Murrell, John A.
Outlaws--Southwest, Old--Biography.
Southwest, Old--Biography.
Southwest, Old--History.
Princeton subject headings:
Murrell, John A.
Outlaws--Southwest, Old--Biography.
Southwest, Old--Biography.
Southwest, Old--History.