Benjamin G. Kohl (1938-2010) was an author and historian who specialized in the history of the Renaissance. The collection consists of research material and personal papers ranging in date from 1960-2006, including a series of correspondence between Kohl and his mentor, Frederic Chapin Lane.

Douglas Southall Freeman (1886 – 1953) was an American historian, biographer, newspaper editor, and author best known for his multi-volume biographies of Robert E. Lee and George Washington. The collection spans the years 1902-1911, and consists primarily of correspondence between Freeman and his parents.

John Higham was a historian and professor at Johns Hopkins University with a principal field of interest in American social and intellectual history of the nineteenth and twentieth centuries. The collection consists of holographic course notes, outlines, examination booklets, and other assignments completed during his undergraduate years at The Johns Hopkins University, 1937-1939, as well as material relating to Dr. Higham's teaching and writing career.