| Children |
| | 1. Mary Elizabeth Clapper, b. Oct 1850, Hancock, Illinois, United States d. 6 Nov 1850, Hancock, Illinois, United States (Age ~ 0 years) |
| | 2. William Wesley Clapper, b. Abt 1851, Illinois d. Abt 1851, Illinois (Age ~ 0 years) |
| | 3. Oliver Wiley Clapper, b. 23 Jan 1853, Illinois, United States d. 13 Oct 1919, Little Sioux, Harrison, Iowa, United States (Age 66 years) |
| | 4. Sophronia Clapper, b. 15 Mar 1856, Illinois, United States d. 7 Dec 1883, Little Sioux, Harrison, Iowa, United States (Age 27 years) |
| | 5. Emma Jane Clapper, b. 16 Apr 1859, Adams, Illinois, United States d. 4 Apr 1938, Butte, South Dakota, United States (Age 78 years) |
| | 6. Matilda Ellen Clapper, b. 2 Mar 1861, Adams, Illinois, United States d. 16 Oct 1902, Doland, Spink, South Dakota, United States (Age 41 years) |
| | 7. Rebecca Clapper, b. 20 Feb 1863, Adams, Illinois, United States d. 1929 (Age 65 years) |
| | 8. Albert Clapper, b. 2 Jul 1865, Illinois, United States d. Yes, date unknown |
| | 9. Jeanette Clapper, b. 16 Feb 1869, Harrison, Iowa, United States d. Yes, date unknown |
| | 10. Olinda Clapper, b. Abt 1871, Iowa d. Iowa  |
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