This collection contains nine boxes of correspondence, business records, land papers, financial statements, and account books related to the Harrison, Denny, and Tilghman families of Talbot County, Maryland, circa 1728-1941. The primary correspondent is Dr. Samuel A. Harrison (1822-1890), a longtime resident of Easton and historian of Talbot County.

This collection contains the law school notes and incoming correspondence of Baltimore attorney, John Upshur Dennis (1846-1916). Letters discuss legal cases, leisurely activities, and news of family members in Richmond, Virginia and Somerset County, Maryland. Also included in the collection are materials such as business papers and incoming correspondence of his father, George Robertson Dennis (1822-1882), a United States Senator.