Scope and Contents From the Sub-Series: Subseries B. Letters Received is comprised of letters related to business matters, particularly shipping and commerce, and land and lumber in Maine. A small number of letters of a more personal nature, such as those regarding Pingree’s time as a trustee of the now-defunct Dearborn Academy in Seabrook, New Hampshire, are interfiled. Additionally, approximately a dozen letters from Cyrus Alger, a Boston metallurgist and inventor, dating from August 1833 to May 1834 can be found in this...