Transportation Rules, Northern Pacific System of Railroads, in Effect Sept. 1, 1883 (St. Paul: Pioneer Press Co, 1883), 5, 7, 8, also 2, 3, Northern Pacific Railway Company Papers, pt. 1, ser. B, NS7602, r. 2, Secretary, Printed Materials.

Aldrich, Death Rode the Rails, 82-85, 109-112.