Skip to main content

Cleveland-Cliffs Iron Mining Company (Gwinn) records

Identifier: MSS-036

Scope and Contents

This collection contains business records for the Cleveland Cliffs Iron Mining Company from 1905 to 1918 and consists four series:

Series I - Gwinn Area Design and Development records. 33 folders. This series consists of information and correspondence relating to the design, development, and operation of CCI properties in the Gwinn/Swanzy area. Gwinn was a model company town created by the Cleveland Cliffs Iron Mining Company. The volume contains estimate and authorization records for various mine locations, correspondence, and financial material related to the establishment of Gwinn. Also included are correspondence from Cleveland Cliffs Iron Mining Company president William G. Mather and urban architect Warren Manning.

Series II - Blueprints and Maps. 1 folder. This series consists of six blueprints and 4 maps of the Gwinn Townsite and various mines.

Series III - Estimate and Authorizations Ledger. This series consists of one ledger containing Estimate and Authorization (E&A) reports for the Gwinn/Swanzy area from 0ct. 1905 - Jan. 1913.

Series IV - Gwinn Area Payroll Ledger. This series consists of one ledger containing payroll records for the Gwinn area.


  • 1905 - 1918


Conditions Governing Access note

No restrictions. Open for research.

Conditions Governing Use note

Permission to publish material from the Cleveland Cliffs Iron Mining Company records, MSS-036, must be obtained from the University Archivist. The University Archivist may be reached by phone at 906-227-1225, or e-mail, The University Archivist may also be reached in Room 126 of the Learning Resource Center, Northern Michigan University, Marquette, MI.


2 Cubic Feet

Language of Materials


Immediate Source of Acquisition note

Gift from William J. Brumm in 1997.

Related Archival Materials Note

Researchers interested in the history of iron mining in the Upper Peninsula should also consult the Cleveland Cliffs Iron Mining Company records on deposit from the State Archives of Michigan. For more information, see the web site at

Cleveland-Cliffs Iron Mining Company records
Marcus Robyns, Glenda K. Ward (Revision)
Description rules
Describing Archives: A Content Standard
Language of description
Script of description
Code for undetermined script
Language of description note

Repository Details

Part of the Central Upper Peninsula and Northern Michigan University Archives Repository

Harden Learning Resources Center 126
1401 Presque Isle Ave
Marquette 49855 United States
906-227-1333 (Fax)


This collection guide includes collections from member organizations of UPLINK (the Upper Peninsula Digital Network) as well as the Central Upper Peninsula and Northern Michigan University Archives. UPLINK collections document the history of the Upper Peninsula broadly, while the Central UP & NMU Archives focuses on such topics as Northern Michigan University history, the local iron mining industry, and the politics, economics, religion, environment, and culture of the Central Upper Peninsula region.

These finding aids will give you an overview of the contents and context of each collection. Finding aids only exist for collections that each organization has shared with UPLINK or (in the case of the NMU Archives) for processed collections. For a more comprehensive list of collections that might help with your research, please contact the relevant heritage organization(s) directly.

Northern Michigan University
1401 Presque Isle Ave. • Marquette, MI 49855-5301 • 906–227–1000
© 2018 by the NMU Board of Trustees. NMU is an equal opportunity institution.