Schrader, Frank Charles (1860-1944) United States of America. Geological Survey.
Pardee, Joseph Thomas (1871-1960) Schrader, Frank Charles (1860-1944) United States of America. Geological Survey.
Schrader, Frank Charles (1860-1944) Stone, Ralph Walter (1876-1964) Sanford, Samuel (1865-1927) United States of America. Geological Survey.
Schrader, Frank C. (1860-1944) Schrader, Frank Charles (1860-1944) Stany Zjednoczone. Geological Survey
Schrader, Frank Charles (1860-1944) Stany Zjednoczone. Geological Survey
Schrader, Frank Charles (1860-1944) Stany Zjednoczone. Geological Survey
Stose, George Willis (1869-1960) Schrader, Frank Charles (1860-1944) Stany Zjednoczone. Geological Survey
Schrader, Frank Charles (1860-1944) Ross, Clyde Polhemus (1891-1965) Stany Zjednoczone. Geological Survey