Collection consists of correspondence (1730-37), land records (1703, 1727-37), financial records (1731-37), and memoranda (1734-37) of the Baltimore Company, an ironworks in Baltimore County.

Daybook of Timothy Kirk, 1797, and some letters, Day books of Wm. Kirk, for 1807,1808,1811, Account books of Baltimore Lumber company, 1811; Norris & Chriswell's; York Haven company; Canal book for 1897; Distillery Receipt book, 1811. Business correspondence and various accounts. Kirk's account with U.S. for civilizing Indians in Ohio country, Correspondence with Kirk and Secretary of War Dearborn, Charter of Ohio Land Co., proposed by Wm. Kirk.