Louis Nelson Van Keuren, born in on April 17, 1850, was the thirty-first Adjutant General of the State of Connecticut. Van Keuren worked as a clerk in a book store in Bridgeport, Connecticut. Before Van Keuren was 20 years old he became a Cashier and Head Accountant in Pacific Iron Works, Bridgeport. He was also a secretary and treasurer for seven years for Bridgeport Gas Light Company. Keuren for ten years was a general manager of the banking house of T.L. Watson & Co of Bridgeport. Van Keuren was president of the board of Appointment and Taxation of Bridgeport. In 1899 he was offered the position of secretary and treasurer by The Colonial Trust Company.