When a young man, Samuel Walker moved with his parents to Tennessee. Mrs. Agnes Walker, nee Bradford, the mother of William M., was born September 6, 1793, in Tennessee. Her father, Bocker Bradford, was born in Virginia, about 1750, and was also of English descent and a soldier in the Revolutionary war. Nine children blessed the marriage of Samuel Walker and Agnes Bradford, (one of them dying in infancy). They moved to Moniteau county, Missouri, in 1836, and there spent the rest of their lives. She died October 11, 1857, and he June 16, 1865.