Peter Henry Pearson

United States. Bureau of Education, Glen Levin Swiggett, Peter Henry Pearson, Walter Alexander Montgomery, William Orr, United States. Office of Education. Statistical Division, Arthur Jay Klein, Walton Simon Bittner, John Dorsey Wolcott, Mary Burchard Orvis

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

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

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

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

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

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