Van Horne to Sykes, 7 April 1885, Van Horne LB, 11:1-2, vol. 2.
Van Horne to Purvis, July 14, 1884, Van Horne LB, 6:90110, vol. 2.
Van Horne to Editor of the Manitoba Free Press, Dec. 24, 1883, Van Horne LB, 4:10-26, vol. 1.
Van Horne to Stephen, Jan. 14, 1884, Van Horne LB, 4:283-92, vol. 1.
A. J. Cotton to T. A. Burrows, Feb. 5, 1899, Cotton to Hon. R. P. Roblin, Dec. 29, 1902, Cotton Letters,8, 13, 67; A. J. Cotton, The Present Elevator System in Our Canadian Northwest (March 1903), Cotton Letters, 71.