Websites for Additional Research
American Experience: The Richest Man in the World, Andrew Carnegie
American Iron and Steel Institute
Association for Iron and Steel Technology
Carnegie Library of Pittsburgh
Carnegie Mellon University Archives
Coalfields of the Appalachian Mountains
Directory of Pennsylvania Genealogical, Historical, and Preservation Societies
Historic American Buildings Survey/Historic American Engineering Record
Historical Society of Western Pennsylvania Library and Archives
Related
The 45-Inch Mill
Constructed in 1942 as part of Homestead's World War II expansion, the 45-inch mill was in operation until the early 1980s.