The John Kingsbury Pimer Collection consists of letters, household accounts, bills, receipts, daybooks, duck books, spar dimension books, and yearly summaries of receipts, disbursements and accounts with New London whaling agents. It includes some papers relating to Pimer's partnership with James Morris (Morris & Pimer), which was dissolved in 1832. Correspondents include whaling merchants Thomas W. Williams, Williams & Barnes, and Williams & Haven.