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What We Do

The Living Past

At the Bentley Historical Library, the past isn’t just stored, but discovered, questioned, and brought to life.

For nearly a century, Michigan’s history has been preserved at the Bentley. As the official archive of the University of Michigan and a leading collector of materials from across the state, the Bentley brings the past into vibrant focus.

Since its founding in 1935, the Library’s mission has been to document the history of Michigan—its people, organizations, and institutions. With more than 12,000 collections across three facilities comprising more than 86,000 feet of material, the Bentley is internationally recognized as a vital research institution.

By sharing original materials and the context behind them, we invite everyone to explore history as it really is—complex, challenging, and still unfolding.

Here, the past isn’t finished. It’s alive, evolving, and full of possibility.

How We Work

The work of the Bentley Historical Library goes well beyond our reading room. Here’s how we collect, process, preserve, and share history.

New Materials

Bentley field archivists travel across Michigan and work closely with U-M units, organizations, and individuals to build lasting connections and identify materials of enduring research value. Each new collection is carefully selected and preserved to reflect the rich history of the University and the state. Read our collecting policy.

Archiving

Once a collection arrives at the Bentley, our Curation team organizes the materials—including physical items like papers and photos, files from digital storage media and the cloud, and websites. They preserve it all and create guides (called finding aids) to help you locate and access what you need.

Conservation

Sometimes, historical papers, like photos and scrapbooks, need extra care. Our expert conservator fixes up items from the collections in our Conservation Lab, using tools from U-M’s historical book bindery, alongside modern equipment. Bentley materials are conserved, stored, and protected to the highest standards.

Digitization

Our digitization specialists turn physical items—like documents, photos, or old tapes—into digital files that you can view on your computer or phone. This can preserve the original and, when possible, makes them easier for you to find and share online. Check out our materials available online for examples.

University Archives

The University Archives and Records team works to collect and research the history of the students, faculty, staff, and community of the University of Michigan, taking in new materials and digging into existing collections to answer new questions.

Advancement

The Bentley’s Advancement team raises awareness of the archives, via our social media pages on Facebook, and Instagram, our newsletter, and in our twice-yearly publication, Collections magazine. They also fundraise to keep the Bentley Historical Library’s hard work supported, with crucial help from gifts by people like you.

Using The Library

When a collection is ready for use, our Public Engagement Team welcomes you to the Bentley, assists you with your research in the reading room, and answers your questions. They also help instruct visiting classes and host Michigan history events at the Bentley.

Detroit Observatory

The Judy and Stanley Frankel Detroit Observatory, a division of the Bentley, is a museum dedicated to the history of astronomy and the history of U-M. Built in 1854, it hosts exhibits, tours, talks, and cultural events—and invites visitors to explore the stars using its original Fitz telescope.

All Stories Belong Here

History is richer when more voices are heard. The library is actively working to build collections that reflect the full range of experiences in the communities it serves, especially stories that have too often been overlooked or left out.

This also means welcoming everyone through our doors. Bentley visitors range from global scholars diving into original research, to U-M students and faculty asking big questions, to genealogists tracing family stories, to K-12 students getting their first look at what an archive is—all alongside many others who are simply curious about the past. Visitors are welcome to explore one-of-a-kind collections that cover politics, science and technology, architectural history, military history, labor, immigration, and so much more.

By sharing original materials and the context behind them, we invite everyone to explore history as it really is—complex, challenging, and still unfolding.