Wolcott Gibbs worked out the electrolytic separation of copper in 1865.
At the fort, on the 22nd of October 1784, a treaty was made by Oliver Wolcott, Richard Butler and Arthur Lee, commissioners for the United States, with the chiefs of the Six Nations.
From 1776 to 1780 two depots for military stores and a workshop for the Continental army were maintained, and the leaden statue of George III., erected in Bowling Green, New York City, in 1770, and torn down by citizens on the 9th of July 1776, was cut up and taken to Litchfield, where, in the house (still standing) of Oliver Wolcott it was melted into bullets for the American army by Wolcott's daughter and sister.
Litchfield was the birthplace of Ethan Allen; of Henry Ward Beecher; of Harriet Beecher Stowe, whose novel, Poganuc People, presents a picture of social conditions in Litchfield during her girlhood; of Oliver Wolcott, Jr. (1760-1833); of John Pierpont (1785-1866), the poet, preacher and lecturer; and of Charles Loring Brace, the philanthropist.
It was also the home, during his last years, of Oliver Wolcott (1726-1797); of Colonel Benjamin Tallmadge (1774-1835), an officer on the American side in the War of Independence and later (from 1801 to 1817) a Federalist member of Congress; and of Lyman Beecher, who was pastor of the First Congregational church of Litchfield from 1810 to 1826.