1. Inwood, Kris ., and Irwin, Jim . “Emigration and the Canadian Economy 1870-1900: A Regional Perspective.” Paper presented to the Canadian Network for Economic History, Stratford, Ont., Oct. 2000.
2. The Competitive Advantage of Nations
3. Record Group 31, series 1, Manuscript Census, 1871, schedule 6 (Industrial Establishments), microfilm.
4. The American Railroad Network, 1861–1890