by Minnesota

1910

by University of Minnesota

1914

by University of Minnesota

1925

by Minnesota. Department of Labor and Industry

1909

by Minnesota. Dept. of Labor and Industry

1909

by Minnesota. Attorney General

1887

by Minnesota. Supreme Court

1897

by Minnesota State Federation of Labor

1920

by Minnesota

1910

by Minnesota. Department of Labor and Industry

1910

by Industrial Commission of Minnesota

1910

by Minnesota. Board of Commissioners on Uniform State Laws

1912