Jethro Wood to Thomas Jefferson, 1 October 1816
From Jethro Wood
Aurora 10mo 1st 1816
Friend Thomas Jefferson
The Firm of which I am a partner requests thy acceptance of a plough, as a respectfull tribute to thy Ingenuity in improving that important Instrument.1 We shall feel ourselves amply recompenced by thy approbation; or, additionally obliged by any suggestion which may tend to render it more Complete.
By an accident occasioned by the warping2 of the wooden patern the edges are raised ⅓ of an Inch too3 high. The plough is now gone for new york and will be forwarded to thee as soon as possible.
Jethro Wood
RC (MoSHi: TJC-BC); addressed: “Thomas Jefferson Montisello Late President of the united states”; franked; postmarked Poplar Ridge, N.Y., 17 Oct., and Washington City, 29 Oct.; endorsed by TJ as received from “Woods? Jethro” on 7 Nov. 1816 and so recorded in SJL.
Jethro Wood (1774–1834), inventor, was born in either Massachusetts or New York and raised in Washington County, New York. He moved permanently to Cayuga County in about 1800. Wood later became a proprietor of a female boarding school in Aurora, corresponding secretary of the Cayuga County Agricultural Society, and postmaster of Poplar Ridge. He is best known, however, for the patents he received for improved plows on 1 July 1814 and 1 Sept. 1819. Having partnered with Elias Rogers to manufacture his invention, he sent samples of their handiwork to both TJ and Emperor Alexander I of Russia. The machine was widely copied, especially in the North. Wood is sometimes credited as inventor of the cast-iron plow, but earlier examples used this material. His invention owed its popularity to a combination of design features, including longitudinal straight lines, good balance, ease of use, interchangeable parts, strength, and affordability. Although his 1819 grant was extended a further fourteen years in 1832, Wood and his family seem to have derived little financial benefit from the invention due to widespread patent infringement (Commercial Advertiser, 5 Nov. 1819; Boston Agricultural Intelligencer, and Mechanic Register, 28 Apr. 1820; Elliot G. Storke and James H. Smith, History of Cayuga County, New York [1879], 441–2, 458; , 140, 206; Cherry-Valley [N.Y.] Gazette, 4 Feb. 1819; , 6:486; Documents relating to the improvements of Jethro Wood in the Construction of the Plough [1838]; New-Bedford [Mass.] Mercury, 24 Oct. 1834).
; New York1. Manuscript: “Instrumment.”
2. Manuscript: “worping.”
3. Manuscript: “to.”