Olaus Jenson was born 24 Feb 1861, Richland Township, Rice, Minnesota, United States; was christened 4 Apr 1861, Holden Church Cemetery, Kenyon Township, Goodhue, Minnesota, United States; died 1863, Richland Township, Rice, Minnesota, United States; was buried 2 Sep 1863, Epsom Pioneer Cemetery, , Rice, Minnesota, United States.