Search results

Date

Type of object

• Book (13) + -
• Finding Aid (5) + -
• Image (2) + -

Type of resource

• text (15) + -
• mixed material (3) + -

Collection

• American Left Ephemera Collection (12) + -
• Historic Pittsburgh Book Collection (1) + -
• Frederick T. Gretton Photographs (1) + -
• Mesta Machine Company Photographs (1) + -
• Pittsburgh and Lake Erie Railroad Company Records (1) + -

Source

• Frederick T. Gretton Photographs, 1857-1953, MSP 328, Library and Archives Division, Senator John Heinz History Center (1) + -
• Mesta Machine Company Photographs, 1906-1925, MSP 210, Library and Archives Division, Senator John Heinz History Center (1) + -

Creator

• Frederick T. Gretton (1) + -
• unknown (1) + -

Subject

• Labor unions (13) + -
• Mineral industries (12) + -
• Miners (12) + -
• Steel industry and trade (4) + -
• Iron and steel workers (3) + -
• Labor disputes (2) + -
• Pennsylvania (2) + -
• African American iron and steel workers (1) + -
• African Americans (1) + -
• Afro-American membership (1) + -

• Alien labor (1) + -
• Alternating current (1) + -
• Cast-iron. (1) + -
• Coal miners (1) + -
• Coal mining (1) + -
• Company towns (1) + -
• Deindustrialization (1) + -
• Depressions (1) + -
• Design and construction (1) + -
• Electric machinery (1) + -
• Emigration and immigration (1) + -
• Engineering (1) + -
• Engines. (1) + -
• Equipment and supplies (1) + -
• Ethnic relations (1) + -
• Factories (1) + -
• Immigrants (1) + -
• Iron workers (1) + -
• Jurisdictional disputes (1) + -
• Mesta Machine Company. (1) + -
• Nuclear energy (1) + -
• Nuclear facilities (1) + -
• Nuclear power plants (1) + -
• Occupational retraining (1) + -
• Pittsburgh. (1) + -
• Political activity (1) + -
• Radio broadcasting (1) + -
• Railroads (1) + -
• Recruiting (1) + -
• Research (1) + -
• Right to labor (1) + -
• Rules and regulations (1) + -
• Rural-urban migration (1) + -
• Serbian Americans (1) + -
• Services for (1) + -
• Shipbuilding industry (1) + -
• Slavic Americans (1) + -
• Slovak Americans (1) + -
• Social aspects (1) + -

Contributor

• University of Pittsburgh (16) + -
• Detre Library & Archives, Heinz History Center (4) + -

Location

• United States (13) + -
• Canada (12) + -
• United States, West (12) + -
• West (U.S.) (12) + -
• Pennsylvania (4) + -
• Allegheny County (2) + -
• McKeesport (2) + -
• McKeesport (Pa.) (2) + -
• Pittsburgh (Pa.) (2) + -
• Aliquippa (1) + -

• Aliquippa (Pa.) (1) + -
• Monongahela River Valley (W. Va. and Pa.) (1) + -
• Neville Island (1) + -
• Neville Island (Pa.) (1) + -
• Pittsburgh (1) + -