Walton Simon Bittner

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

Carl Anderson, United States. Office of Education, Walter Sylvanus Deffenbaugh, United States. Bureau of Education, John Charles Muerman, American Association for the Advancement of Agricultural Teaching. Meeting, Fred Clayton Butler, Frederick William Reynolds, Harry Percy Barrows, Henry Harold Goldberger, J. H. Berkowitz, National Council of Primary Education (U.S.). Meeting, United States. Bureau of Education. Division of Statistics, United States. Bureau of Education. Statistical Division, Walton Simon Bittner