Chapter 7: William Pinkerton, footnote 13, page 321 RL7 fn. 13 p. 321 Tags: Manuscript Collections, Labor, Corporate and Business Organization Transportation Rules, Northern Pacific System of Railroads, in Effect Sept. 1, 1883, 93-95. Northern Pacific Railway Company Papers, pt. 1, ser. B, NS7602, r. 2, Secretary, Printed Materials.