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Finding Aid to the Amador Mining Company records, 1866-1886 (bulk 1867-1872)
BANC MSS C-G 129  
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Collection Details
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  • Collection Summary
  • Information for Researchers
  • Administrative Information
  • HIstorical Information
  • Scope and Content of Collection

  • Collection Summary

    Collection Title: Amador Mining Company records
    Date (inclusive): 1866-1886
    Date (bulk): (bulk 1867-1872)
    Collection Number: BANC MSS C-G 129
    Creators : Amador Mining Company
    Extent: Number of containers: 5 cartons, 8 oversize boxes, 12 volumes, 1 box, 1 oversize folder (Linear feet: 21.2)
    Repository: The Bancroft Library
    University of California, Berkeley
    Berkeley, California, 94720-6000
    Phone: (510) 642-6481
    Fax: (510) 642-7589
    Email: bancref@library.berkeley.edu
    URL: http://bancroft.berkeley.edu/
    Abstract: Records of the Amador Mining Company of Amador County, California, including administrative records, correspondence, and financial records dating mostly from 1867 to 1872.
    Languages Represented: Collection materials are in English
    Physical Location: Many of the Bancroft Library collections are stored offsite and advance notice may be required for use. For current information on the location of these materials, please consult the Library's online catalog.

    Information for Researchers


    Collection is open for research.

    Publication Rights

    All requests to reproduce, publish, quote from or otherwise use collection materials must be submitted in writing to the Head of Public Services, The Bancroft Library, University of California, Berkeley, 94720-6000. Consent is given on behalf of The Bancroft Library as the owner of the physical items and is not intended to include or imply permission from the copyright owner. Such permission must be obtained from the copyright owner. See: http://bancroft.berkeley.edu/reference/permissions.html. 
    Restrictions also apply to digital representations of the original materials. Use of digital files is restricted to research and educational purposes.Materials in this collection may be protected by the U.S. Copyright Law (Title 17, U.S.C.). In addition, the reproduction of some materials may be restricted by terms of University of California gift or purchase agreements, donor restrictions, privacy and publicity rights, licensing and trademarks. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
    All requests to reproduce, publish, quote from, or otherwise use collection materials must be submitted in writing to the Head of Public Services, The Bancroft Library, University of California, Berkeley 94720-6000. See: http://bancroft.berkeley.edu/reference/permissions.html .

    Preferred Citation

    [Identification of item], Amador Mining Company records, BANC MSS C-G 129, The Bancroft Library, University of California, Berkeley.

    Alternate Forms Available

    There are no alternate forms of this collection.

    Indexing Terms

    The following terms have been used to index the description of this collection in the library's online public access catalog.
    Amador Mining Company--Archives.
    Consolidated Amador Mining Company
    Seaton Mining Company.
    Maxwell Mining Company.
    Mines and mineral resources--California--Amador County.
    Gold mines and mining--California--Amador County
    Gold mines and mining--California--Mother Lode
    Mineral industries--California--Amador County
    Amador County (Calif.)
    Sutter Creek (Calif.)
    Drytown (Calif.)
    Hayward Mine (Amador County, Calif.)
    Old Eureka Mine (Amador County, Calif.)
    Hetty Green Mine (Amador County, Calif.)
    Maxwell Mine (Amador County, Calif.)
    Wolverine Mine (Amador County, Calif.)
    Minutes--California--Amador County
    Stock certificates--California--Amador County
    Ledgers--California--Amador County
    Reports--California--Amador County
    Financial records--California--Amador County

    Administrative Information


    No additions are expected.

    Processing Information

    Processed by Lara Michels in 2013.

    HIstorical Information

    The Amador Mining Company was incorporated in October of 1867 to operate what was then called the Hayward Mine in Sutter Creek, Amador County. Over the years the property would also be known as the Old Eureka, the Amador Consolidated, and the Hetty Green. The Hayward Mine, developed and worked from around 1854 to 1867 by Alvinza Hayward, who would become one of California's most successful mining millionaires, was the product of the amalgamation of two mine properties: the Eureka Mine and the Badger Mine. When the Amador Mining Company assumed operations of the Hayward Mine in October of 1867, the property consisted of 36 acres upon which were situated the mines themselves, two mills (the Eureka Mill and the Badger Mill), a blacksmith's shop, coal houses, a powder magazine, a lumber yard, and boarding houses for the mine employees. Original trustees of the Amador Mining Company included Alvinza Hayward, L.A. Garnett, F. Sanderland, A.H. Rose, and S.F. Butterworth. The mine was one of the most profitable mines in the Sutter Creek region. In 1870, the Maxwell Mine (also known as the Wolverine Mine) also came under Amador Mining Company ownership. In 1872, ownership of the mine was transferred from the Amador Mining Company to an English company called the Consolidated Amador Mining Company, which was formed by Edward H. Green, husband of infamous American businesswoman Hetty Green. The mine closed down operations in 1886. Hetty Green, who assumed ownership of the mine after her husband's death, refused to operate or sell the property until 1916, when she finally sold out to a reconstituted Consolidated Amador Mining Company.

    Scope and Content of Collection

    Collection includes the following series: administrative records, such as by-laws, minutes, reports, legal documents, and stockholder information; correspondence, mostly from the mine's superintendent to corporate offices of the mining company; and financial records, such as payroll lists, monthly accounts, ledgers, journals, cashbooks, and vouchers. The bulk of the materials document the operations of the Amador Mining Company between 1867 and 1872, but a small number of documents date from the era of the Consolidated Amador Mining Company (1872-1886). There are also financial records and correspondence from the Maxwell Mine in Amador County and the Seaton Mining Company in Drytown, California.