| Robert Arnold Cardwell Johnson |
| Robert Arnold Cardwell Johnson | |
| F: | 10 Maj 1927 |
| Des Moines County, Iowa, USA | |
| D: | 19 Feb 1996 |
| Columbia, Boone County, Missouri, USA | |
|
| John Angell Johannessen Johnson* |
| John Angell Johannessen Johnson* | |
| F: | 24 Okt 1886 |
| Skudenes, Vik, Rogaland | |
| D: | 16 Jun 1969 |
| Jefferson City, Cole County, Missouri, USA | |
| Stella Mearle Riggen |
| Stella Mearle Riggen | |
| F: | 18 Sep 1904 |
| Sidell, Vermilion County, Illinois, USA | |
| V: | 1922 |
| D: | 19 Apr 1989 |
| Jefferson City, Cole County, Missouri, USA | |