Son of George Woodson Duncan and Margaret Meadows Duncan.

Married to Lurintha Walters on February 2, 1885 in Caswell County, North Carolina.

William and Rinthia were the parents of:
Sidney Marsh Duncan
Margaret Lamberth Duncan
William Crisp Duncan
Gertrude Swann Duncan
Exie Dawn Duncan
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1870 United States Federal Census
Name: William Duncan
Birth Year: abt 1856
Age in 1870: 14
Birthplace: North Carolina
Home in 1870: Tally Ho, Granville, North Carolina
Race: White
Gender: Male
Household Members: Name Age
Geo W Duncan 47
Margaret Duncan 40
Elizabeth Duncan 23
Robaca J Duncan 18
Eugenia Duncan 15
William Duncan 14
Edwin Duncan 10
Lagon Duncan 8
Martha Duncan 5
Mary Duncan 4
Luther Duncan 2
Elizabeth Duncan 69

1880 United States Federal Census
Name: William A. Duncan
Home in 1880: Dutchville, Granville, North Carolina
Age: 23
Estimated Birth Year: abt 1857
Birthplace: North Carolina
Relation to Head of Household: Son
Father's Name: George W. Duncan
Father's birthplace: North Carolina
Mother's Name: Margret Duncan
Mother's birthplace: North Carolina
Occupation: Farm Laborer
Marital Status: Single
Race: White
Gender: Male
Household Members: Name Age
George W. Duncan 59
Margret Duncan 48
Rebecca J. Duncan 29
William A. Duncan 23
John E. Duncan 21
Loton Duncan 18
Martha T. Duncan 16
Mary A. Duncan 13
Luther Duncan 12
Crudufi G. Duncan 7
Exterma Duncan 5

North Carolina, Marriage Records, 1741-2011
Name: Appenthia Walters
Gender: Female
Marriage Date: 2 Feb 1885
Marriage Place: Caswell, North Carolina
Spouse: William A Duncan
Spouse Gender: Male
Event Type: Marriage

1900 United States Federal Census
Name: W A Duncan
Home in 1900: Woodsdale, Person, North Carolina
Age: 43
Birth Date: Feb 1854
Birthplace: North Carolina
Race: White
Gender: Male
Relationship to head-of-house: Head
Father's Birthplace: Virginia
Mother's Birthplace: Virginia
Spouse's Name: Rinthes Duncan
Marriage year: 1885
Marital Status: Married
Years married: 15
Household Members: Name Age
W A Duncan 43
Rinthes Duncan 30
Maggie Duncan 11
Crisp Duncan 7
Guitie Duncan 1
Elie Duncan 4/12