U.S. Department of Agriculture

Erwin F Smith
  • 1899
    [position unknown]
Erwin F. Smith
  • 1907
    [position unknown]
  • 1909
    [position unknown]
  • 1910
    [position unknown]
  • 1911
    [position unknown]
  • 1912
    [position unknown]
Walter T. Swingle
  • 1899
    [position unknown]
Carl S. Alsburg
  • 1907
    [position unknown]
  • 1909
    [position unknown]
  • 1910
    [position unknown]
  • 1911
    [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]
Mathilde M. Lange
  • 1920
    [position unknown]