• Name: Olava Severine Olsen (Robertsen)
• Birth Date: December 24, 1893
• Birth Place:
• Occupation:
• Marriage: October 11, 1915
• Spouse: Thomas Robert Marius Robertsen
• Death: December 11, 1997

1. Kathleen Olive Robertsen (Schaumann)
2. Marion Orril Robertsen (Delear)
3. Anita Ruby Robertsen (Foito)
4. Vivian Alice Robertsen (Jones)
5. Margot Karoline Robertsen (Carroll)
6. Hope Ann Robertsen (Babinski)

 
|- Kornelius Andreas Olsen
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|--- Olava Severine Olsen (Robertsen)
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|- Bertha Karoline Jakobsen (Robertsen)