William and Mary Killebrew's son Henry Barry Killebrew married Martha Swearingen 6-13-1852. They had a daughter Nannie Barry Killebrew born 10-18-1860. Nannie Barry Killebrew married John Bowden Mackey 5-3-1882. They had three sons: Clarence Elmore Mackey, Lomax Cammack Mackey, & John Bobo Mackey, and a daughter Jennie Adams Mackey. I have some other information on their families. Nannie Barry Killebrew Mackey was my mother's grandmother. Nannie Barry died in Clarksdale, Mississippi on 10-7-1941.