| Name | Born | Place of birth (place of living shown if missing) | |
|---|---|---|---|
| Bror Gustav Ohlsson | Lived in Kalnar, Sverige | ||
| H. Olafsen | Lived in Nøtterøy | ||
| Harald Olausen | Lived in Oslo | ||
| Carl Olaussen | Lived in Gøteborg, Sverige | ||
| Herman V. Oleander | Lived in Stockholm, Sverige | ||
| A. J. Olsen | Lived in Bergen | ||
| Albion Olsen | Lived in Oslo | ||
| Anders Olsen | Lived in Sandefjord | ||
| Arne Olsen | Lived in Narvik | ||
| Aron Olsen | December 16, 1899 | Born in Fjære | |
| Bernhard Chr. Olsen | 1885 | Lived in Arendal | |
| Edvin Ludvik Olsen | Lived in Kristiansund | ||
| H. Olsen | Lived in Fredrikstad | ||
| Harald Olsen | Lived in Stavanger | ||
| Harald Olsen | Lived in Bergen | ||
| Hendrik Severin Olsen | July 10, 1893 | Born in Risør | |
| Henry Elias Olsen | Lived in Haugesund | ||
| Herman Lorentz M. Olsen | October 30, 1876 | Lived in Bergen | |
| Jacob Olsen | 1891 | Lived in Trondheim | |
| J. Falck Olsen | Lived in Bergen | ||
| Johan Olsen | Lived in Fredrikstad | ||
| Johan Olsen | 1855 | Lived in Bergen | |
| Johan K. Olsen | Lived in Asker | ||
| Johannes Olsen | Lived in Vadsø | ||
| Johan Peter Olsen | Lived in Kristiansand |