Abstract Anton M. Holter (1831-1921) was a pioneer Helena, Montana, lumberman and founder of the A.M. Holter Hardware Company. Papers (1831-1921) include correspondence, and organizational and financial records relating to mining, agriculture, lumber, real estate, and oil interests of three generations of the family, headed successively by Anton M. Holter, Norman B. Holter, and Norman J. "Jeff" Holter. Many of the enterprises were in partnership with Samuel T. Hauser. Interests include the A.M....

Abstract This collection is a sub-subgroup (former Division) of the Montana Department of Community Affairs records, RS 505. The Research and Information System Division operated within the Department of Community Affairs. This Division currently (as of 2025) operates within the Department of Commerce. Please see the primary finding aid for more Montana Department of Community Affairs...

Abstract Helena, Montana, mining and geological engineer Leverett Ropes (1868-1953) was employed by various mining firms, by the federal government, and as a private consultant. This collection contains papers (ca. 1888-1952) concerning Ropes' mining engineering and geology consulting work and his interest in a variety of political issues. The general correspondence (1928-1952) concerns mines in Lewis and Clark, Jefferson, and Broadwater counties, Fort Peck Dam, his dispute with federal agencies over...