Letter signed John O'Neill, Headquarters, Fenian Brotherhood, New York, to Capt. John O'Keefe, Harrisburg, Pennsylvania, May 5, 1870, D03802. Missouri Historical Society Library and Research Center.

Letter signed John O'Neill, Headquarters, Fenian Brotherhood, New York, to Capt. John O'Keefe, Harrisburg, Pennsylvania, May 5, 1870, D03802. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/2009 Accessed September 20, 2024.