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B4-2-15 US Geological Survey, Birdseye, C.H., 1923-1925, Wallace W. Atwood
B4-2-15 US Geological Survey, White, David, 1920-1930, Wallace W. Atwood
B-4-5-2 Gregory, Dr. Herbert E 1927-1928, Wallace W. Atwood
B-4-6-5 Yard, Mr Robert Sterling Jan-Sep 1929 (folder 1), Wallace W. Atwood
B4-6-5 Yard, Mr. Robert Sterling, Oct-Dec 1929 (folder 2), Wallace W. Atwood
B4-7-1 Albright, Horace M., 1930, Wallace W. Atwood
B4-7-3 Merriam, Dr. John C., 1929-1930 (folder 1), Wallace W. Atwood
B4-7-3 Merriam, Dr. John C., 1929-1930 (folder 2), Wallace W. Atwood
B4-8-1 Albright, Horace M., 1931, Wallace W. Atwood
B4-8-4 Merriam, Dr. John C., 1931, Wallace W. Atwood
B4-8-4 Merriam, Dr. John C., 1931 (folder 2), Wallace W. Atwood
B4-8-4 Merriam, Dr. John C., 1931 (folder 3), Wallace W. Atwood
B4-8-4 Merriam, Dr. John C., 1931 (folder 4), Wallace W. Atwood
B4-8-4 National Park Service, 1931, Wallace W. Atwood
