Frances Seth Bryant (Anderson) - What are the sources for this profile?

"Early Colonial Settlers of Southern Maryland and Virginia's Northern Neck Counties" has the following sourced information for Frances Seth Anderson:

Father: George Anderson
Born Abt 1660 Westmoreland County, Virginia
Died Aft 1707 Stafford County, Virginia

Mother: Unknown

Seth Anderson
Born Abt 1691 Stafford County, Virginia
Gender Female
Died Aft 1752 Hanover Parish, King George County, Virginia

Richard Bryant, b. Aft 1686, Hanover Parish, Richmond County, Virginia, d. 1 Apr 1748, King George County, Virginia - Probate (Age < 60 years)
Married Abt 1707 Hanover Parish, Richmond County, Virginia

Children
1. Rosanna Bryant, b. 1710, Hanover Parish, Richmond County, Virginia. d. Aft 1784 (Age > 75 years)
2. Margaret Bryant, b. 1722, St. Paul's Parish, Stafford County, Virginia
3. Richard Bryant, b. Bef 1726, Hanover Parish, King George County, Virginia. d. Aft 1752, Brumfield Parish, Culpeper County, Virginia (Age > 28 years)

This information - again, it is sourced - directly contradicts some of the information attached to this profile.