by University of Wisconsin. Extension Service

1918

by Michigan State University. Agricultural Experiment Station

1914

by University of Wisconsin

1914

by University of Massachusetts (Amherst campus). Cooperative Extension Service

1916

by National University Extension Association

1922

by West Virginia University

1928

by Ohio State University. College of Agriculture. Extension Service

1919

by University of Wisconsin. University Extension

1909

by Ohio State University. Alumni Association

1927

by University of Wisconsin. College of Agriculture. Agricultural Extension Service

1909

by University of Idaho

1915

by University of California, Berkeley

1961