William was the son of Azro B. Church and Harriet Matilda Williams. Born 15 Oct 1855 in Salem, Marion County, Oregon. He married Martha Louise Jewett on 27 Dec 1881 in Halls Bridge, Lewis River, Clark County, Washington. Martha was the daughter of Henry W. Jewett and Nancy Angelina Skeen.
They lived most of their married life in Ilwaco, Pacific, Washington. William died 6 May 1932 in Ilwaco. He was buried in Ilwaco Cemetery but he has no stone. Martha moved to Oak Harbor with her daughter Elizabeth Estella Powell. Martha died 15 Mar 1937 in Oak Harbor, Island County, Washington. She is buried Maple Leaf Cemetery.