1831 - 1918 (86 years)
| Augustus Elmer Blackburn | |
| B: | 10 Nov 1858 |
| Bradford, Chickasaw County, Iowa | |
| D: | 28 Nov 1948 |
| Agra, Phillips County, Kansas | |
| May Belle Hall | |
| B: | 25 Dec 1863 |
| Nashua, Chickasaw County, Iowa | |
| M: | 2 Jan 1890 |
| Manhattan, New York County, New York | |
| D: | 26 Sep 1893 |
| Ash Grove Township, Franklin County, Nebraska | |
1831-1918
| John Blackburn, Jr. | |
| B: | 17 Nov 1831 |
| Clinton County, Ohio | |
| D: | 11 Jan 1918 |
| Campbell Township, Greene County, MIssouri | |
| Cynthia B. Hall | |
| B: | 22 Jun 1838 |
| Brasher Center, St. Lawrence County, New York | |
| M: | 21 Jan 1856 |
| Bradford, Chickasaw County, Iowa | |
| D: | 11 May 1860 |
| Bradford, Chickasaw County, Iowa | |
