The Charlotte Kreuger Papers contain meeting minutes and papers pertaining to The Third Great Western Turnpike.

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.

Helen Lucy Kennard was a direct descendant of the Ledyard family name. Throughout her life, Helen took a great interest in her family's history and compiled genealogical research piecing together her history that she wanted to publish as a book. Her collection contain that same genealogical research, correspondence pertaining to said research, original land and business papers and original correspondence between her ancestors. The collection also contains ephemera, printed materials, newspaper clippings, and photographs that pertain to her research and her family history.

The Meadows collection is comprised of documents, papers, and photographs collected by the families that owned The Meadows mansion in Cazenovia, NY. These families include The Ledyards, The Hubbards, and The Oakmans, providing a snapshot of the personal life of an upper class family during the mid 1800s to the 1950s. Please see the scope and content note for a more in depth description of the collection.