William Ketchum (March 2, 1798 – October 1, 1876) was the 14th Mayor of the City of Buffalo, New York.
He was one of the founders of the original Bank of Buffalo along with Major Andre Andrews and Hiram Pratt.
In 1861, he patented the Ketchum Grenade, which was used by the Union Army during the American Civil War.
[2] On March 18, 1823, he married Lamira Callendar of Buffalo; she died in 1866 and he remarried on September 7, 1871, to Elizabeth Palmer of Brantford, Ontario.
[3] He died October 1, 1876, and is buried in the Ketchum family plot in Forest Lawn Cemetery.