Dating from the 1790s through 1970, the Lincklaen/Ledyard collection in the Lorenzo archive contains correspondence, land records, wills, maps, store and personal account ledgers, photographs, ephemera, and more created, collected or relating to the family members, enslaved, servants, and business and personal associates.

The Samuel S. Forman Papers contain administrative records, books, cattle and livestock papers, papers pertaining to the Cazenovia Post Office, certificates, correspondence, estate records, genealogy, Jonathan Denise Ledyard, government records, land documents, legal documents, lists, papers pertaining to the Madison County Court, John H. Oley, Richard Button Patent, slave documents, store documents, speeches and addresses, writings, and miscellaneous papers. Although the Samuel S. Forman Papers are primarily made up of business documents and papers from Forman's time as a shop owner of general stores for the Holland Land Company, and a store in Middletown Point, New Jersey. These business documents and papers include: account books and statements, ashes, bills and receipts, calculations, cashbooks, correspondence, daybooks, invoice books, ledgers, memorandums, orders for payment, petty lists, receipt books, registers, scratch books, and suppliers for Forman's stores. Some business documents and papers pertain to business dealings with specific people and organizations such as Jonathan and Samuel Forman Sr., Oneida Turnpike Road Co., the Cazenovia Establishment, the Sloop Monmouth, Jacob H. Ten Eyck, Sweet and Lovejoy, the Third Great Western Turnpike, S. Van Rensselaer, and Isaac Van Vleck.