William Blakeney served in Septa Millmore’s Co., New York Militia during the War of 1812. He enlisted August 17, 1813 and was discharged November 18, 1813. He served as substitute for Elisha Pangman.

William Blakeney married Susan Powers on January 12, 1819, in Ferrisburgh, Addison, Vermont. Susan was born September 17, 1798, and died May 18, 1887. She is buried in Maplewood Cemetery, Lamont, Michigan. William died September 8, 1863, and is buried in Maplewood Cemetery.