Katz, Viktor (1880–1940)
Carter, Howard (1873–1939)
Hegi, Gustav (1876–1932)
Frobenius, Leo (1873–1938)
Amelung, Walther (1865–1927)
Bushnell, David Ives (1875–1941)
Jacobs, Friedrich Christian Wilhelm (1764–1847)
Mooney, James (1861–1921)
Baedeker, Karl (1801–1859)
Hegi, Gustav (1876–1932)
Hegi, Gustav (1876–1932)
Hegi, Gustav (1876–1932)