This collection of American Insurance Company Records contains correspondence, meeting minutes, financial records, policies and more. The bulk of the collection covers the first three years of the company's business, 1825 through 1827. The records are divided into three series.

Series I. Administrative Records contains minutes of directors' and stockholders' meetings, and business correspondence. In addition to insurance proposals and general financial business, the correspondence includes information regarding marine insurance claims, such as those on the capture of the brig Governor Endicott by the British, and the wrecks of the brigs Roscius and Triton.

Series II. Financial Records consists of account books, stock certificates, dividend accounts, and financial papers. The financial papers contain general bills and receipts, miscellaneous stock dividend receipts, as well as papers and general averages of vessels which the company insured.

Series III. Policies consists of marine policies for individual years, a memo book, and an account book.