by Charles Riborg Mann, Floyd Marion McDowell, John Haywood Francis, Lorne Webster Barclay, Peter Henry Pearson, Sheldon Emmor Davis, Theresa Bach, Thomas Jesse Jones, United States. Office of Education, Walter Alexander Montgomery

1920

by David Segel, Elise Henrietta Martens, Howard Washington Oxley, James Frederick Rogers, John Hamilton McNeely, Junius Lathrop Meriam, Mary Dabney Davis, Walter Herbert Gaumnitz, Walter James Greenleaf, Willis Branson Coale, Maris Marion Proffitt

1937

by Marion G. Clark, Wilbur Fisk Gordy

1929