20. Petrine Marie³ Schulerud was born in Kristiania, Oslo, Norway 29 Jan 1868.⁽²⁵⁾ Petrine died 16 Sep 1952 in Los Angeles County, California, at 84 years of age.⁽²⁶⁾

She married Gustav Adolph Gunderson ca 1891. Gustav was born in Kristiania, Oslo, Norway 31 Jul 1867.⁽²⁷⁾ (See Gustav Adolph Gunderson for the children resulting from this marriage.)