1917 - 1983 (66 år)
 | Douglas Paul Johnson 1947-2020 |
| Douglas Paul Johnson | |
| F: | 6 Mar 1947 |
| Boone, Boone County, Iowa, USA | |
| D: | 11 Jan 2020 |
| Cedar Rapids, Linn County, Iowa, USA | |
 | Anita Marie Sealine 1948-2019 |
| Anita Marie Sealine | |
| F: | 5 Apr 1948 |
| Ames, Story County, Iowa, USA | |
| D: | 25 Maj 2019 |
| Cedar Rapids, Linn County, Iowa, USA | |
| Annabel Gladine Culbertson 1917-1983 |
| Annabel Gladine Culbertson | |
| F: | 17 Aug 1917 |
| Central City, Merrick County, Nebraska, USA | |
| D: | 8 Dec 1983 |
| Boone, Boone County, Iowa, USA | |
 | Delmar Gilbert Johnson 1916-1999 |
| Delmar Gilbert Johnson | |
| F: | 19 Dec 1916 |
| Clear Lake Township, Hamilton County, Iowa, USA | |
| D: | 28 Mar 1999 |
| Boone, Boone County, Iowa, USA | |
