| Family |
John Duncan, b. 1741, Fauquier, Virginia, British Colonial America d. Oct 1833, Floyd, Floyd, Virginia, United States (Age 92 years) |
| Children |
| | 1. Mary Duncan, b. 30 Oct 1776, Fauquier County, Virginia, United States of America d. 19 Oct 1826, Washington, Indiana, United States (Age 49 years) |
| | 2. Henry Duncan, b. 1772, Fauquier, Virginia, United States d. 1834 (Age 62 years) |
| | 3. Blanch Duncan, b. 1774, Fauquier, Virginia, British Colonial America d. 1834, Indian Valley, Floyd, Virginia, United States (Age 60 years) |
| | 4. Seth Duncan, b. Abt 1775, Fauquier, Virginia, United States  |
| | 5. Thomas Duncan, b. 1780, Montgomery, Virginia, United States d. 1847, Floyd, Virginia, United States (Age 67 years) |
| | 6. Greenberry Duncan, b. 1785, Montgomery County, Virginia d. 12 May 1860, Carroll, Virginia, United States (Age 75 years) |
| | 7. John S Duncan, Jr., b. 1786, Montgomery, Virginia, United States d. 1872, Floyd, Virginia, United States (Age 86 years) |
| | 8. Elizabeth Duncan, b. 18 Jan 1788, Prince William, Virginia, British Colonial America d. Bef 1880, Virginia Colony (Age < 91 years) |
| | 9. Margaret Duncan, b. 1790, Montgomery, Virginia, United States  |
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