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2. (1985): “The Practice of Solidarity. Hat Finishers in the Nineteenth Century.” Urbana: University of Illinois Press.
3. (1890): “Twelfth Annual Report of the Bureau of Statistics of Labor and Industries of New Jersey for the Year Ending October 31, 1889.” Camden: F.F. Patterson.
4. (1867): Joseph Addison Freeman. In: “The Medical Men of New Jersey in Essex District From 1666 to 1866.” New York: Wm. T. Mercer and Sons.