Collection consists of tapes of lectures and talks given at Civil War Roundtables and sessions at a Civil War Summer Institute led by Virginia Tech History Professor James I. Robertson, Jr., attended and recorded by Hahn. Topics focus on prominent Civil War battles, campaigns, and persons.

This collection includes research notes, manuscripts, typescript drafts, working copies and galley proofs for books and articles written by Virginia Tech's Alumni Distinguished Professor of History James I. Robertson Jr., 1982-2001. Large collection of notes, papers, and correspondence relateing to Virginia Civil War counties and units. Also contains a small set of general materials which includes items related to the preservation of lands adjacent to Manassas National Battlefield Park.