William M. Bryson was born circa 1758, either in Pennsylvania or western North Carolina, to William (born 1732) and Isabella Holmes Bryson. He and Susannah Bogle were married in the Mills River section of Henderson County, NC. William and Susannah reared eleven children:
William M. served in the Revolutionary War along with his five brothers.
His and Susannah's dates of death are unknown.
Source: "The Bryson Family."