Abstract Gustaf Carlson (1907-1996) was a Helena based mining engineer involved in mining in Montana, Idaho, Arizona, and Minnesota. This collection (1890s-1960s) consists of subject files on local mines including the Spring Hill (near Unionville), the Klondyke and the Sourdough (in Elkhorn); the East Pacific and the Kleinschmidt (near Townsend); the Drumlummon (near Marysville); mines in the Corbin and Wickes area; and other mines in Montana and Idaho. One of the larger subject files concerns the...

Abstract

Frank Sizer was a Helena and Butte, Montana, mining engineer. He managed the Whitlach-Union, Spring Hill, Eclipse-Argo, and Gould mines; worked for Canoll and Martin; and served as a consultant to William A. Clark in his Colusa Parrott law suit and his purchase of the Rosario Mine in Mexico. Collection (1878-1909) includes correspondence, financial records, legal documents, diaries, scrapbooks, clippings, and notebooks.