Erie County Survey Commission for reorganization of county government (Kenefick Commission): hearing transcripts and allied material, 1933-1935; letters and broadsides by Gerrit Smith, 1866-1869; letters of Booker T. Washington from the Tuskegee Institute, Alabama, 1908-1911; and letters and papers, 1932-1933, about the life of Jonas Harrison.

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.