by University of Illinois (Urbana-Champaign campus) Board of Trustees

1881

by University of Illinois (Urbana-Champaign campus). Board of Trustees

1926

by University of Illinois (Urbana-Champaign campus)

1929

by University of Illinois (Urbana-Champaign campus). Bureau of Educational Research

1930

by University of Illinois at Urbana-Champaign. Graduate College

1904

by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station

1926

by University of Illinois (Urbana-Champaign campus). College of Agriculture

1923

by University of Illinois (Urbana-Champaign campus)

1906

by University of Illinois (Urbana-Champaign campus)

1923

by University of Illinois (Urbana-Champaign campus)

1918

by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station

1905

by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station

1930