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| ? – | Married Laura (Newcomer) Larson |
| 30 Nov 1870 – | Olaf Larson born |
| 4 May 1897 – | Daughter Mamie M. (Larson) Harms born in Utica, LaSalle County, Illinois, United States |
| 29 Jul 1899 – | Daughter Letha (Larson) Newman born |
| 8 Apr 1902 – | Daughter Verna (Larson) McLaughlin born |
| 10 Jul 1903 – | Daughter Florence (Larson) Mickley born |
| 27 Mar 1907 – | Daughter Ruth (Larson) Fullerton born |
| 8 Jun 1915 – | Son Harold C. Larson born |
| 28 Mar 1935 – | Olaf Larson died |
| 28 Mar 1935 – | Olaf Larson buried |