Columbia subject headings:
Harvard subject headings:
Abbott, E. C. (Edward Charles), 1860-1939.
Cowboys--Montana--Biography.
Cowboys--West (U.S.)
Frontier and pioneer life--West (U.S.)
Princeton subject headings:
Abbott, E. C. (Edward Charles), 1860-1939.
Cowboys--Great Plains--Personal narratives.
Frontier and pioneer life--West (U.S.)
Ranch life--Great Plains.