Special Exhibits:
Double Mack Mining Company

Introduction
Duncan John McDonald and George McKay formed the partnership in 1906 that became known as the "Double Mack Mining Company."  Curiously, two other "Macks" appear to have been sometime partners: Charles McDonald (Duncan's brother) and A. J. McCorkle.  Their mining interests involved quartz lode mines producing gold, silver and other precious metals in what is now Lincoln County, and what was, at first, Flathead County, Montana.  The "Porcupine," "Granite Mountain," "Eagle Queen," "Creasy," "Seattle," "Texas Ranger," "Washington," "Morning Star," "Silver King," "Donna" and "Queen of the West" were a few of their mines.   It is unknown when the company ceased operations.

Double Mack Mining Company Exhibit
The Double Mack Mining Company collection consists of contracts (1906-1931), naturalization records (1899-1935), notices of location/deeds (1898-1934), stock certificates (1901-1928), and correspondence (1892-1943). 

The contracts and notices of location pertain to mining property located and owned by the company.  Correspondence includes both business letters and much of the personal correspondence of Duncan John McDonald, including many letters from his sisters Jennie and Catherine in Ontario, Canada.  The naturalization records are also the personal papers of McDonald.

Pictured at right are the following items:

- A Certificate of Citizenship for Duncan John McDonald which was issued in September 26, 1935.
- A Stock Certificate issued in June 2, 1924, for the Double Mack Mining Company.
- A letter addressed to Duncan McDonald from his brother-in-law, Oswald Lindroos, dated August 8, 1910. Mr. Lindroos is inquiring about Libby, the weather, fishing and if Duncan can send some postcards of the area.

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