A History of Wisconsin Highway Development 1835-1945; A joint project by the State Highway Commission of Wisconsin and the Public Roads Administration, Federal Works Agency; Madison; 1947; pp.19-20. See also Race of First Steam Buggies Wisconsin Historical Society; and Williams, F. Dennis; Accessed Mar. 13, 2011
Adamson, John F. (1959). Engineering History of the Rambler and the Small Car Picture Today. Society of Automotive Engineers. p. 5. doi:10.4271/590176.
A History of Wisconsin Highway Development 1835-1945; A joint project by the State Highway Commission of Wisconsin and the Public Roads Administration, Federal Works Agency; Madison; 1947; pp.19-20. See also Race of First Steam Buggies Wisconsin Historical Society; and Williams, F. Dennis; Accessed Mar. 13, 2011