This collection consists of various business records of the Baltimore hat manufacturing firm, M.S. Levy and Sons, Inc. Included are order records for straw and felt hats; manufacturing expense accounts books; monthly financial statements; a design book; minutes of meetings of the board of directors; and blueprints for additions to the plant.

This collection consists primarily of legal records and financial reports of the Baltimore hat manufacturing firm M.S. Levy and Sons, Inc. Also included are the records related to the company's reorganization and merger with the New England Panama Hat Company in 1939.

The Roger Johnson account books are the business records, day book, invoice book, and ledger of Roger Johnson. The materials are related to Bloomsbury Mills the property of Johnson who was the youngest brother of Governor Thomas Johson. The materials are dated 1806 through 1842.