| 1. Martha Duncan, b. 28 Dec 1837, , , Ohio, United States d. Yes, date unknown
| | 2. John Duncan, b. 1 Feb 1839, , , Ohio, United States d. 9 Jan 1914 (Age 74 years)
| | 3. Henry Duncan, b. 17 Feb 1840, , , Ohio, United States d. 18 Feb 1896 (Age 56 years)
| | 4. Mary Duncan, b. 1 Dec 1842, , , Ohio, United States d. Yes, date unknown
| | 5. Nancy Duncan, b. 9 Mar 1845, , , Ohio, United States d. 9 Oct 1924 (Age 79 years)
| | 6. Elizabeth Duncan, b. 19 Feb 1846, , , Ohio, United States d. Yes, date unknown | | 7. Emily Duncan, b. 16 Oct 1847, , , Ohio, United States d. 30 Oct 1850 (Age 3 years) | | 8. Sarah Duncan, b. 4 Mar 1850, Pike, Marion, Indiana, United States d. 29 Nov 1877, Pike, Marion, Indiana, United States (Age 27 years)
| | 9. Margaret Duncan, b. 13 Jun 1851, , , Indiana, United States d. 18 Jul 1909, Indianapolis, Marion, Indiana, United States (Age 58 years)
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