^Westing, Fred (1966). The Locomotives that Baldwin Built. New York: Bonanza Books. p. 14.
^U.S. Post Office Department (1885). History of the Railway Mail Service: a chapter in the history of postal affairs in the United States. Washington, D.C.: Government Printing Office. p. 28.
^Easton, Larry E. (Summer 2007). "The Wisconsin Central in Eau Claire". The Soo. 29 (3). The Soo Line Historical and Technical Society: 9–43. ISSN0733-5296.