James Sargent
James Sargent (1824–1910) was an American locksmith and businessman. He founded the Sargent and Greenleaf company. Biography. Sargent was born in Chester, Vermont on December 1, 1824. He married Angelina Foster in 1847; they had one daughter. In 1865, Sargent established the Sargent and Greenleaf company. Later in life, he founded the Sargent Automated Railway Signal Company, one of several predecessors of the General Railway Signal company. He died at his home in Rochester, New York on January 12, 1910, and was buried at Mount Hope Cemetery.