Brian Dunnigan discusses the extensive collection of military primary source materials held at the William L. Clements Library in Ann Arbor, Michigan.  The William L. Clements Library is a rare book and manuscript repository located on the University of Michigan’s central campus in Ann Arbor, Michigan. Specializing in Americana and particularly North American history prior to the twentieth century, the holdings of the Clements Library are grouped into four categories: Books, Manuscripts, Graphics and Maps. The library’s collection of primary source materials is expansive and particularly rich in the areas of social history, the American Revolution, and the colonization of North America. The Book collection includes 80,000 rare books, pamphlets, broadsides, and periodicals. Within the other divisions, the library holds 600 atlases, approximately 30,000 maps, 99,400 prints and photographs, 134 culinary periodicals, 20,000 pieces of ephemera, 2,600 manuscript collections, 150 pieces of artwork, 100 pieces of realia, and 15,000 pieces of sheet music. The Clements Library is visited by over 450 researchers yearly, Dunnigan discusses the Library with host Jim Fausone