Scope and Contents From the Sub-Series: Subseries C. Letterbooks document the activities of George Peabody & Co. from 1845 to 1854, when J.S. Morgan became a partner in the firm. Letterbook volumes 1-21 contain correspondence to international merchants and bankers from 1845 to 1851. Letterbooks covering the years 1851 to 1854 are divided into two sections: volumes 21-25 with letters to the United States, Canada, South America, and the Far East; and volumes 26-41 (originally labeled volumes A-P) to Great Britain, Europe, the...