HMCC . Homestake Mining Company Collection

The Allan J. Clark Papers include documents created or utilized by Clark during his time working for the Homestake Mining Company. The materials are dated between 1896 and 1932 with the bulk of material dating between 1909 and 1917. Documents include annual cost reports, correspondence, drawings, records of experiments conducted by Clark and others, research files on mines in other countries, and published works regarding the use of different forms of energy.

The Bureau of Mines Publications Collection consists of several types of literature published by the Bureau between 1910 and 1997. These publications were received and used by employees of the Homestake Mining Company.

Canyon Corporation Records consist primarily of sample records from the Maitland Silver and Gold Mine. The records also include bank deposit books, production reports, and maps and surveys of the Matiland area.

The Hat Creek Oil Company Records consists primarily of correspondence sent to and from the company’s owners, B.C. Yates, L.M. McBride, and Ralph Bonney. The collection also includes mineral and mining lease paperwork, agreements, payroll information, and newspaper clippings. The materials are dated between 1913 and 1918 with the bulk of documents dating from the time period that the company was active, between May 1917 and June 1918.

The Homestake Mining Company operated from 1877-2001. The annual reports were created by the accounting department in order to provide an overview of the financial earnings each year for the company's shareholders. In the earlier years, the reports include basic financial information and statements from the management. As the mine grew into a larger and more financially viable operation, the reports grew more detailed to reflect that change.

The Homestake Assay and Ore Reserve Records consist of assay records, ore estimates, and reports. Materials from 1895 through 2000 are present in the collection with the bulk of the material dating from 1940 through 1998. The collection also contains graphs that were at one time, framed and matted by the Homestake Mining Company.

The Buildings and Community Facilities Collection is an artificial collection that includes records and maps related to Homestake Mining Company's construction of employee housing and community facilities such as parks, schools, and hotels in the Black Hills. The collection also contains records of construction work for operations outside of South Dakota. The bulk of records are from the 1930s.

The Homestake Employee Collection is an artificial collection which consists primarily of individual employee records from the 1920s through the early 1990s. The collection also includes information on insurance and other benefits available to Homestake employees and reports on employee numbers.

The Homestake Geology Department Papers consist of documents, rock samples, and thin sections from 1903 to 2005. Materials include geologic, stope, diamond drilling maps and drawings; reports, correspondence, ledgers, and indexes that represent the functions and activities of the Geology Department.

This collection primarily consists of the administrative and financial records of the Homestake Aid Auxiliary. The collection includes financial and membership records, correspondence, meeting minutes, accounting of dues received, photographs, and receipts paid to local businesses. These records span the years of 1910–1989.