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Guide to the Mentor Etnyre Collection, 1910-1934
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Collection Details
Table of contents What's This?
  • Descriptive Summary
  • Administrative Information
  • Access Points
  • Contents
  • Biography
  • Correspondents
  • Material Transferred from the Collection

  • Descriptive Summary

    Title: Mentor Etnyre Collection,
    Date (inclusive): 1910-1934
    Box Number: 2020-2023
    Collector: Etnyre, Mentor
    Extent: 4 boxes
    Repository: California State Library
    Sacramento, California
    Language: English.

    Administrative Information



    Conditions of Use

    Please credit California State Library.

    Publication Rights

    Copyright has not been assigned to California State Library. All requests for permission to publish or quote from manuscripts must be submitted in writing. Permission for publication is given on behalf of California State Library as the owner of the physical items and is not intended to include or imply permission of the copyright holder, which must also be obtained by the reader.

    Preferred Citation

    [Identification of item], Mentor Etnyre Collection, California State Library.

    Access Points

    Gold mines and mining--California--Plumas County
    Mining claims--California--Plumas County
    Etnyre, Mentor


    Business and personal correspondence; accounts, inventory, legal papers, monthly statements and vouchers for Plumas-Eureka Mine; proofs of labor upon various mining claims.


    Mentor Etnyre was an engineering geologist and prospector. He promoted mining ventures in the western United States. He managed mining operations at the Plumas-Eureka Mine near Johnsville, Plumas County, California for a short time in the mid 1930s and held mining claims in the adjoining Jamison Creek area.


    Major Correspondents

    • Harrison, Ben
    • Lundy, C. A.
    • Spiegel, Modie J.

    Other Correspondents

    • Abbot A. Hanks, Inc.
    • American Smelting and Refining Company
    • Burton, A. T.
    • California. Industrial Accident Commission
    • Carila
    • Carnation Gold Mining Company
    • Cowan, L. L.
    • Crocker Bank
    • Elmore, G. H.
    • Fertig, W. W.
    • Flake Gold Recovery Company
    • Garnier, E. W. for O. B. Perry
    • Harnischfeger Corporation
    • Jefferson, Robert C.
    • Justinian Caire Company
    • Keefer, J. R.
    • Mendenhall Gold Concentrator Company
    • Mendenhall, W. E.
    • Morrison, Hohfeld, Foerster, Schuman & Clark
    • Nevada Testing Laboratory
    • Nichols, H. N.
    • Northern Assurance Company
    • Phelps, M. B.
    • G. W. Price Pump & Engine Company
    • Saindon, B.
    • Spiegel, May, Stern Co.
    • State Compensation Insurance Fund of California
    • Stewart, W. A.
    • Walker, H. G.

    Material Transferred from the Collection


    • Plumas Eureka Mine Ledger, 1910-1911 (TN 423 Z6 P58 P58 1910)


    • Development and Assay Map, Middle East End Mine, El Dorado County, California
      Identifier/Call Number: (c912 E37d n.d.)