Circular letter of John O'Neill, "To the Officers and Members of the Fenian Brotherhood," Headquarters, Fenian Brotherhood, New York, September 15, 1868, D03763. Missouri Historical Society Library and Research Center.

Circular letter of John O'Neill, "To the Officers and Members of the Fenian Brotherhood," Headquarters, Fenian Brotherhood, New York, September 15, 1868, D03763. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/1974 Accessed November 10, 2024.