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AISI: American Iron and Steel Institute Vertical File, Hagley Museum and Library, Wilmington, DE AM: Archives of Michigan, Lansing, MI BENT: Bentley Historical Library, Ann Arbor, MI CCI: Cleveland-Cliffs Iron Company, Cleveland, OH CCI-Empire: Cleveland-Cliffs Iron Company, Empire mine, Palmer, MI CCI-HF: Historical Files, Cleveland-Cliffs Iron Company, Cleveland, OH CCI-LDP: Cleveland-Cliffs Iron Company, Land Department Papers, MS 76–90, Archives of Michigan, Northern Michigan University Repository , Marquette, MI CEP: Cyrus Eaton Papers, MS 3913, Western Reserve Historical Society, Cleveland, OH CIMC-CCICP: Cleveland Iron Mining Company and Cleveland-Cliffs Iron Company Papers, MS 86–100, Archives of Michigan, Northern Michigan University Repository, Marquette, MI CIMC-WR: Cleveland Iron Mining Company Correspondence, MS 3136, Western Reserve Historical Society, Cleveland, OH DSC-CSU: John L. Horton Collection, Department of Special Collections, Michael Schwartz Library, Cleveland State University, Cleveland, OH ICP-I: Iron Cliffs Company Papers, RG 65-37, Archives of Michigan, Northern Michigan University Repository, Marquette, MI ABBREVIATIONS 272 LIST OF ABBREVIATIONS ICP-II: Iron Cliffs Company Papers, RG 66-36, Archives of Michigan, Northern Michigan University Repository, Marquette, MI ICP-III: Iron Cliffs Company Papers, RG 68-102, Archives of Michigan, Northern Michigan University Repository, Marquette, MI LRL: Longyear Research Library, Marquette County Historical Society, Marquette , MI MTU: Michigan Technological University Archives and Copper Country Historical Collections, Houghton, MI PLSMI: Proceedings of the Lake Superior Mining Institute PWP: Peter White Papers, Bentley Historical Library, Ann Arbor, MI WGMFP: William Gwinn Mather Family Papers, MS 4578, Western Reserve Historical Society, Cleveland, OH ...

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