1. Keith Inman and Norah Rudin, Principles and Practice of Forensic Science: The Profession of Forensic Science (Boca Ratan, NJ: CRC Press, 2001), Appendix A.
2. Philip S. Foner, ed., The Autobiographies of the Haymarket Martyrs (NewYork: Humanities Press, 1969), pp. 131–160; Chicago Tribune, Aug. 11, 1886, p. 1.
3. Paul Avrich, The Haymarket Tragedy (Princeton, NJ: Princeton Univ. Press, 1984), p. 123; Foner, p. 67.
4. Mark A. Lause, The Civil Wars Last Campaign: James B. Weaver, the Greenback-Labor Party & the Politics of Race and Section (Lanham, MD: Univ. Press of America, 2001).
5. Elliot J. Kanter, “Class, Ethnicity, and Socialist Politics: St. Louis, 1876–1881,” UCLA Historical Journal, 3 (1982), pp. 36–60.