Authors: 1920
- Jones, Alfred Stowell 1832-1920
- Kauppis-Heikki 1862-1920
- Kellogg, Brainerd 1834-1920
- Kellogg, E. E. (Ella Ervilla) 1853-1920
- Keményffi, Jenő 1875-1920
- Kilpatrick, James Jackson 1920-2010
- Kisieleski, Walter E. 1920-2011
- Kondylakes, Ioannes 1861-1920
- Konstantinidis, Agathoklis 1854-1920
- Körösfői-Kriesch, Aladár 1863-1920
- Kristianson, Elof 1880-1920
- Kuhlenbeck, Ludwig 1857-1920
- Kuyper, Abraham 1837-1920
- Lafone Quevedo, Samuel A. (Samuel Alexander) 1835-1920
- Leckie, Robert 1920-2001
- Lee, Elizabeth 1857-1920
- Leitz, Ernst 1843-1920
- Lockyer, Norman, Sir 1836-1920
- Louden, George 1920-1997
- Ludwig, Edward W. 1920-1990
- Lyall, Charles James, Sir 1845-1920
- Lyman, William Denison 1852-1920
- MacSwiney, Terence J. (Terence Joseph) 1879-1920
- Marchetti, Louis 1920-1992
- Mathers, Helen 1853-1920
Sort By: