Sordahl was accompanied by his wife Margaret , who was a naturalist .
In September 1929 , the team was replaced by Louis O. Sordahl , assisted by A.G. Froiland .
Louis O. Sordahl was accompanied by Louis O. Sordahl 's wife Margaret , who was a naturalist .
In September 1929 , the team was replaced by Louis O. Sordahl , assisted by A.G. Froiland .