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.
Access to the Detre Library & Archives at the Senator John Heinz History Center is free for all visitors. Visitors coming to the History Center solely to use the Library & Archives will not be charged admission; they will be given a special Library & Archives sticker at the Admissions Desk and directed to the 6th floor, where they will sign in. Paid admission to the museum is required to see the exhibits.
Wednesday – Saturday, 10 a.m. to 5 p.m.
The Detre Library & Archives will close at 2pm on March 23, July 27, September 21, and December 7 and 4:30pm on Saturday, June 10th.
Appointments are recommended for researcher visits to ensure the availability of materials. Please contact us to schedule your appointment.
Phone: 412-454-6364 Email: firstname.lastname@example.org