| Birth | November 6, 1883 32 25 |
| Death of a brother | Olaf Olson 1883 Cause: Died on ship immigrating |
| Birth of a brother | Baby Olson September 23, 1887 (Age 3 years) Note: Place of birth most likely Polk County, Minnesota
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| Death of a brother | Baby Olson September 23, 1887 (Age 3 years) Cause: During birth |
| Death of a mother | Martea Larsdatter September 23, 1887 (Age 3 years) Cause: Giving birth to 5th child |
| Marriage of a parent | Nicolai Olsen — Karen Helene Johnson — View this family Type: Religious marriage February 12, 1891 (Age 7 years)Address: United Lutheran |
| Birth of a half-brother | Almer Olson May 19, 1891 (Age 7 years) |
| Birth of a half-brother | Carl Martin Olson September 30, 1892 (Age 8 years) |
| Birth of a half-brother | John Theodore Olson November 18, 1894 (Age 11 years) |
| Birth of a half-brother | Arthur Leonard Olson December 2, 1896 (Age 13 years) |
| Birth of a half-sister | Nora Emillie Olson December 28, 1899 (Age 16 years) |
| Birth of a half-sister | Olga Josephine Olson April 3, 1902 (Age 18 years) |
| Birth of a half-brother | Reuben Olson February 12, 1904 (Age 20 years) |
| Birth of a half-brother | Sidney Clifford Olson May 7, 1908 (Age 24 years) |
| Birth of a daughter #1 | Rosetta Mildred Olson May 25, 1916 (Age 32 years) |
| Death of a father | Nicolai Olsen July 19, 1928 (Age 44 years) Cause: Stroke |
| Death of a sister | Mary N. “Marie” Olsdatter November 13, 1946 (Age 63 years) |
| Burial of a sister | Mary N. “Marie” Olsdatter November 22, 1946 (Age 63 years) Cemetery: Greenwood |
| Death of a sister | Anna Olson November 26, 1955 (Age 72 years) |
| Death of a daughter | Rosetta Mildred Olson February 21, 1991 (Age 107 years) |
| Death | yes |