The sudden collapse of a dam on the Mill River in Williamsburg, Massachusetts in 1874 killed 139 people, left 740 homeless and destroyed factories all along the river. The disaster made international news and led to new regulations on dam construction around the country.

Author Elizabeth M. Sharpe will give a presentation on her book about the disaster at 7:00 pm on Wednesday, November 8th in the Ramsdell Room of the Pelham Public Library.