1883 - 1950 (66 år)
 | Einar Christian Omdahl 1909-1990 |
| Einar Christian Omdahl | |
| F: | 4 Maj 1909 |
| Stavanger, Vikedalsgate 28, Rogaland | |
| D: | 25 Mar 1990 |
| Hennepin County, Minnesota, USA | |
 | Margrethe Omdahl 1915-1981 |
| Margrethe Omdahl | |
| F: | 3 Apr 1915 |
| Iowa, USA | |
| D: | Nov 1981 |
| Decorah, Winneshiek County, Iowa, USA | |
|
| Helga Müller 1883-1950 |
| Helga Müller | |
| F: | 26 Aug 1883 |
| Oslo, Thorvald Meyers gate 23 | |
| D: | 1950 |
| Bayfield, Bayfield County, Wisconsin, USA | |
 | Oscar Salvesen Omdahl 1880-1943 |
| Oscar Salvesen Omdahl | |
| F: | 3 Feb 1880 |
| Stavanger, Rogaland | |
| D: | 16 Sep 1943 |
| Decorah, Winneshiek County, Iowa, USA | |
