- 1931Student
- 1913[position unknown]
- 1919[position unknown]
- 1926[position unknown]
- 1928Research Scholar
- 1925Rockefeller Research Fellow
- 1929Student
- 1911[position unknown]
- 1912[position unknown]
- 1913[position unknown]
- 1914[position unknown]
- 1915[position unknown]
- 1916[position unknown]
- 1917[position unknown]
- 1918[position unknown]
- 1919[position unknown]
- 1920[position unknown]
- 1921[position unknown]
- 1922[position unknown]
- 1923[position unknown]
- 1924[position unknown]
- 1925[position unknown]
- 1926[position unknown]
- 1927[position unknown]
- 1928[position unknown]
- 1929[position unknown]
- 1913[position unknown]
- 1914[position unknown]
- 1915[position unknown]
- 1916[position unknown]
- 1917[position unknown]
- 1918[position unknown]