PLATT, Zephaniah, 1735-1807


Guide to Research Collections

Dutchess County Historical Society
Poughkeepsie, NY
Papers: ca. 1776-1894, 14 items.
Miscellaneous papers of Zephaniah Platt contain a memoranda on the military history of the colonies, 1776-1779; documents from his service as Justice of the Peace, 1791-1798; and a notice concerning his estate, 1830. Other family items include muster roll of John Platt’s corps of infantry, 1812, and regimental orders signed by John Platt, 1814; letters from Bethiah W. Ganoe concerning Zephaniah Platt and the Platt family, 1894; and undated letters by Sarah E. Angell concerning the Platt and Adriance families.


New York State Library
Manuscripts and Special Collections
Albany, NY
Papers: 1745-1846, 0.25 cubic foot.
The Zephaniah Platt papers contain family correspondence, consisting primarily of letters to Zephaniah Platt by his children. Topics of the correspondence concern chiefly land matters involving Zephaniah Platt and others, for the most part in Dutchess and Clinton Counties, New York. Family members, military officers, government officials, and proprietors of patents are represented. There are some letters to family member Reverend Frederick Halsey who founded the First Presbyterian Church of Plattsburgh. Financial and legal items include an account memorandum book of Zephaniah Platt for 1785, business agreements, military certificate and inspection returns for Clinton County, receipts, and estate papers and wills for Gerard W. Beekman, Gisbert Pele [Pelze?], and John Platt. Land papers consist of abstracts, agreements (including a list of the original proprietors for Plattsburgh), deeds and maps for lands in Nine Partners Patent, Dutchess County and various patents in Clinton County. There are seven maps including Sadaqueda Patent, 1784, Oneida County, New York; Bell’s Tracts, [Clinton County], New York; Township No. 24, [Somerset, Windham County, Vermont?]; Dean’s, Beekman’s, and Kelly’s Patents, Clinton County, New York; and two which are unidentified. An unpublished guide is available in the repository.

Papers: In the Bixby Family Papers, 1784-1930, 2 cubic feet.
Subjects include Zephaniah Platt. An unpublished guide is available in the repository.

Papers: In the John Thurman, Jr. Papers, 1741-1835, 0.5 cubic foot.
Correspondents include Zephaniah Platt. An unpublished guide is available in the repository.


Plattsburgh Public Library
Plattsburgh, NY
Papers: In the Miscellaneous Correspondence Collection, 1765-1935, 0.2 cubic feet.
The collection includes letters to Zephaniah Platt concerning land purchases and politics, a religious disagreement, land, money, visits, and family history.

Papers: In the Miscellaneous Manuscripts Collection, 1882-1981, 1.5 cubic feet.
Persons represented include Zephaniah Platt.


State University of New York College at Plattsburgh
Special Collections, Feinberg Library
Plattsburgh, NY
Papers: In the Kent-Delord Maps, 1784-1856, 16 items.
Subjects include Zephaniah Platt.