Loughlin, Gerald Francis (1880-1946) United States of America. Geological Survey.
Butler, Bert Sylvenus (1877-1960) Loughlin, Gerald Francis (1880-1946) United States of America. Geological Survey.
Loughlin, G. F. (1880-1946) Loughlin, Gerald Francis (1880-1946) Stany Zjednoczone. Geological Survey
Loughlin, Gerald Francis (1880-1946) Stany Zjednoczone. Geological Survey
Loughlin, Gerald Francis (1880-1946) Stany Zjednoczone. Geological Survey
Landgraf, Hugo (1895-1946)
Kalähne, Alfred (1874-1946)
Kalähne, Alfred (1874-1946)
Kalähne, Alfred (1874-1946)
Kalähne, Alfred (1874-1946)
Kalähne, Alfred (1874-1946)
Butts, Charles (1863-1946) United States of America. Geological Survey.
Berg, Georg (1876-1946) Königlich Preussische Geologische Landesanstalt
Berg, Georg (1876-1946) Königlich Preussische Geologische Landesanstalt
Beal, Carl Hugh (1889-1946) United States of America. Geological Survey.
Jentzsch, Alfred (1850-1925) Berg, Georg (1876-1946) Königlich Preussische Geologische Landesanstalt
Butts, Charles (1863-1946) Moore, Elwood S. (1879-1966) United States of America. Geological Survey.
Batowski-Kaczor, Stanisław (1866-1946) Jankowski, Czesław-Borys (1862-1941) Stachiewicz, Piotr (1858-1938)
Grover, Nathan Clifford (1868-1956) Parker, Glenn Lane (1884-1946) Lamb, William Alfred (1881- ) United States of America. Geological Survey.
Grover, Nathan Clifford (1868-1956) Baldwin, George Clyde (1884-1951) Parker, Glenn Lane (1884-1946) Paulsen, Carl G. Purton, Astley B. (1886-1962) Henshaw, Fred Forbes (1884-1933) United States of America. Geological Survey.
Loessner, Anton (1885-1946)