Thomas, Seth (1785-1859), was an American clock manufacturer. He formed a partnership with two clockmakers, Eli Terry and Silas Hoadley, in 1807, and soon became skilled at designing and making clocks. Thomas withdrew from the partnership in 1812, and established his own clock factory in Plymouth, Connecticut. Thomas was a good businessman, and so he made a fortune. He also built a cotton mill and a brass-rolling and wire-making factory. Thomas was born in Wolcott, Connecticut.
