He was a strong supporter of the American Mathematical Society being a member of its Council from 1935 to 1937, a semicentennial lecturer in 1938, colloquium lecturer in 1942, vice president during 1950-51 and president during 1955-56.
Siya ay isang malakas na tagataguyod ng Amerikanong matematiko Society pagiging isang miyembro ng kanyang Konseho 1935-1937, isang kalahating siglo lektor sa 1938, colloquium lektor in 1942, Vice President sa panahon ng 1950-51 at presidente sa panahon ng 1955-56.