Susan Young was a great3-granddaughter of James and Janet (Hamilton) Muirhead.(3.33) She descended through their daughter, Margaret, who married John Hamilton, 6th of Udstoun. Their son, John married Helen Whiteford, and their son, William married Margaret Hamilton. Their daughter, Margaret married James Young and they gave birth to a daughter: Susan. The family resided at East Kilbride, Scotland.
Susan Young married James Marshall, a son of Marshall Brounlee and Jeanie -----. They gave birth to Lilias, who died in 1811.