John H. White Jr., The American Railroad Freight Car: From the Wood-Car Era to the Coming of Steel (Baltimore: Johns Hopkins Univ. Press, 1993), 137, 138.
White, Freight Car, 70, 138.
White, Freight Car, 122-123, table 1.15.
Testimony of John C. Stubbs, Aug. 13, 1887, PRC, 6:3362-63.
J. C. Stubbs to CPH, July 6, 1883, CPH Papers, ser. 1, r. 33.
Van Horne to H. Abbott, Nov. 26, 1886, Van Horne LB, 19(1):370-72, vol. 3.
Van Horne to W. Whyte, Nov. 26, 1886, Van Horne LB, 19(2):373-76, vol. 3.