Altman, Morris (1999). "New Estimates of Hours Of Work and Real Income in Canada from the 1880s to 1930: Long‐run Trends and Workers' Preferences". Review of Income and Wealth. 45 (3): 353–372. doi:10.1111/j.1475-4991.1999.tb00345.x. ISSN0034-6586.
Allen Seager; David Roth (2016). "British Columbia and the Mining West: A Ghost of a Chance". In Heron, Craig (ed.). The Workers' Revolt in Canada, 1917–1925. Toronto: University of Toronto Press. p. 250. doi:10.3138/9781442682566. ISBN978-1-4426-8256-6.
Altman, Morris (1999). "New Estimates of Hours Of Work and Real Income in Canada from the 1880s to 1930: Long‐run Trends and Workers' Preferences". Review of Income and Wealth. 45 (3): 353–372. doi:10.1111/j.1475-4991.1999.tb00345.x. ISSN0034-6586.
Howard, Irene (1992). The Struggle for Social Justice in British Columbia: Helena Gutteridge, the Unknown Reformer. Vancouver: UBC Press. p. 119. ISBN978-0774804257. OCLC29599226.