Authors: 1920
- Southard, Elmer Ernest 1876-1920 1341 downloads
- Abney, William de Wiveleslie, Sir 1843-1920 1231 downloads
- Rubiner, Ludwig 1881-1920 1224 downloads
- Chatzopoulos, Kostantinos 1868-1920 1221 downloads
- Bush, Bertha E. (Bertha Evangeline) 1866-1920 1209 downloads
- Thomas, Theodore L. 1920-2005 1204 downloads
- Dammer, Udo 1860-1920 1171 downloads
- Bowen, Benjamin Lester 1860-1920 1160 downloads
- Seklemian, A. G. (Apraham Garabed) 1864-1920 1151 downloads
- Bright, J. Franck (James Franck) 1832-1920 1145 downloads
- Elias, Lee 1920-1998 1127 downloads
- Curtis, Dora 1875-1920 1125 downloads
- Rickards, Edwin Alfred 1872-1920 1052 downloads
- Hervey, Mary F. S. (Mary Frederica Sophia) 1853-1920 1043 downloads
- Cook, Jane E. (Jane Elizabeth) 1836-1920 1032 downloads
- Hardy, E. J. (Edward John) 1849-1920 1026 downloads
- Endrődi, Sándor 1850-1920 1017 downloads
- O'Conor, J. F. X. (John Francis Xavier) 1852-1920 994 downloads
- Elwell, J. B. (Joseph Bowne) 1874-1920 965 downloads
- Kellogg, Brainerd 1834-1920 941 downloads
- Snoek, Johan M. 1920-2012 934 downloads
- Reid, Christian 1846-1920 931 downloads
- Winans, Walter 1852-1920 925 downloads
- Suematsu, Kencho 1855-1920 924 downloads
- Garner, R. L. (Richard Lynch) 1848-1920 922 downloads
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