William was born between 1717 and 1720. He is said to be a son of Charles Morgan, born September 28, 1680 in North Farnham, Old Rappahannock, Virginia, died September 22, 1766 in Fauquier County, Virginia and Alice Thornton, born about 1693 in Virginia, and died 1766 in Fauquier County, Virginia, daughter Francis Thornton and Alice Savage.
William was first married to Mary Duncan. His 2nd marriage was to Elizabeth Withers Hudnall on January 1760, daughter of Joseph Hudnall and Mary Withers. She was born January 18, 1734/35 in Fauquier County, Prince William, Virginia, and died September 15, 1815 in Stanford, Lincoln, Kentucky.
William spent most of his life in Fauquier County, Virginia and was a large land and slave holder. He was county surveyor of Prince William County and Fauquier County. William fathered 6 children with Mary Duncan and 6 children with Elizabeth Hudnall.
From probate of Fauquier Families.
William reportedly migrated with his son-in-law James Withers to Lincoln County, Kentucky a short time before he died.
1800 Census shows Elizabeth Withers Hudnall Morgan living alone in Stanford, Lincoln County, Kentucky.

Lincoln County, Stanford Court House
Book B-Page 190 William Morgan.........
To wife. Son Joseph. My five children, James, William, Joseph, Daniel and Sally my daughter. Hannah Bruces children. To daughter Mary Settle. To daughter Elizabeth McCormick. To son Charles. To daughter Phebe Fishback. To daughter Alice Fishback. To daughter Rosamond Settle. To Polly daughter of Rosemond Settle. To William Bruce. To James Withers husband of my daughter Frances Withers.
Exec's, sons, James, William, Joseph and Daniel.
Written April 29, 1797. Witnesses, William Spillman, John Dodds and Luke Robinson.
Probated October 10, 1797.

Morgan-Hudnall Prayer Book which states “William Morgan departed this life 18th day of Aug 1797 on the tomb stone on the prop of Harvey Withers one mile south of Danville in the seventy fourth year of his age.”