• 4 Wisconsin Historical Society Library
• 2 WHS State Archives Preservation Facility
• 1 Verona Shelving Facility

• 11 Books

• 4 Frontier and pioneer life
• 3 Finance
• 3 Violence
• 2 Businessmen
• 2 Economic aspects
• 2 Millionaires
• 2 Mines and mineral resources
• 2 Mining engineers
• 1 Abandoned mined lands reclamation
• 1 Accidents
• 1 Americans
• 1 Assayers
• 1 Copper mines and mining
• 1 Energy development
• 1 Environmental aspects
• 1 Environmental degradation
• 1 Environmental disasters
• 1 Family
• 1 Gold mines and mining
• 1 Hydraulic fracturing
• 1 Industrialists
• 1 Investments
• 1 Irish Americans

• 2 McGrath, Roger D
• 2 Peterson, Richard H
• 1 Farley, Bill, 1959-
• 1 Grimmett, Robert G., 1931-
• 1 Grossman, Sarah E. M.
• 1 Lingenfelter, Richard E
• 1 McGrath, Roger D.
• 1 Offenburger, Andrew
• 1 Thompson, Jonathan P. (Journalist)
• 1 William P. Clements Center for Southwest Studies
• 1 Worcester, Leonard, Jr., 1863-1939

• 3 Aurora
• 3 Bodie
• 3 California
• 3 Nevada
• 2 Colorado
• 1 Animas River (Colo. and N.M.)
• 1 Butte
• 1 Butte (Mont.)
• 1 Californa
• 1 Chihuahua (Chihuahua)
• 1 Gold King Mine (San Juan County)
• 1 Leadville
• 1 Mexican-American Border Region
• 1 Mexico
• 1 Montana
• 1 Monterey
• 1 United States

• 4 Biography
• 3 Case studies
• 1 Anecdotes
• 1 History
• 1 Personal narratives

Limit year range