Pittsburgh 1967. Allegheny Conference on Community Development Photographs, 1892-1981, Detre Library & Archives.


The Thomas & Katherine Detre Library & Archives at the Senator John Heinz History Center is Western Pennsylvania’s preeminent source for researching the region’s rich history.

Founded in 1879, the Library & Archives preserves the rich history of Western Pennsylvania, and makes its collections accessible to researchers, students, and the general public.

The Library & Archives collection includes:

  • 700,000 photographs, prints, and negatives
  • 40,000 books, pamphlets, and monographs
  • 3,500 individual archival collections of families, organizations, businesses, and industries
  • 600 periodical titles
  • 500 maps and atlases

Learn more about Western Pennsylvania, a region of cultural and ethnic diversity and unsurpassed significance in the history of industrialization and economic development.


Phone: 412-454-6364

Email: library@heinzhistorycenter.org

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