Happy 220th, Jefferson County! In the year in 1805, Jefferson County was formed. An Act was passed on March 28, 1805, which erected Lewis and Jefferson Counties. Henry Coffeen led a movement to have this area partitioned from Oneida County. It was named in honor of the then-President of the United States, Thomas Jefferson. The first Board of Supervisors meeting was held in October of that year in a schoolhouse located on Public Square in Watertown. The Board consisted of Noadiah Hubbard (Champion), Cliff French (Rutland), Corlis Hinds (Watertown), John W. Collins (Brownville), Nicholas Salisbury (Adams), Thomas White (Harrison), Lyman Ellis (Ellisburgh), and Asa Brown (Malta). Mr. Hubbard was chosen as President of the Board.