Other
Beers, Henry Putney, 1907-
1
Carnegie Institution of Washington
1
Cornell University. New York Historical Resources Center
1
Kielman, Chester V.
1
Learned, Marion Dexter, 1857-1917
1
Library of Congress European Historical Mission.T
1
Spain. Ministerio de Asuntos Exteriores
1
United States. National Archives and Records Administration
1
United States. National Historical Publications Commission
1
University of Texas at Austin. Archives
1