Williamsville, situated northeast of Williamsville Lake, was at first platted as the Village of Unadilla on January 30, 1837, by Darwin N. Edson and the heirs of Curtis Noble. This plat for the east half of the east half of the southwest quarter of section 28 was vacated by an act of the state Legislature on March 25, 1846. The area later became known as Williamsville [Wikipedia]