Authors: O
- Schmidt, Otto Ernst 1862-1926 Mar 2, 2025
- Rølvaag, O. E. (Ole Edvart) 1876-1931 Mar 1, 2025
- Homberg, Octave 1876-1941 Feb 28, 2025
- Lyy, Toivo 1898-1976 Feb 27, 2025
- Owen, Robert Emmett 1878-1957 Feb 27, 2025
- Omar Khayyam 1048-1122 Feb 27, 2025
- Orczy, Emmuska Orczy, Baroness 1865-1947 Feb 25, 2025
- Maillard, Olivier -1502 Feb 21, 2025
- Oesterley, W. O. E. (William Oscar Emil) 1866-1950 Feb 21, 2025
- Walpole, Horace 1717-1797 Feb 21, 2025
- Cox, George (Optician) - Feb 19, 2025
- Walton, O. F., Mrs. 1849-1939 Feb 17, 2025
- Okellos, ho Leukanos, active 6th century B.C. - Feb 16, 2025
- Lajula, Osmo 1874-1935 Feb 14, 2025
- Ockham, David - Feb 6, 2025
- Reuter, O. M. (Odo Morannal) 1850-1913 Feb 4, 2025
- Dupanloup, Félix 1802-1878 Jan 26, 2025
- Herford, Oliver 1863-1935 Jan 22, 2025
- Joutsen, O. A. (Otto Aleksanteri) 1878-1936 Jan 19, 2025
- Montpensier, Ferdinand François Philippe Marie d'Orléans, duc de 1884-1924 Jan 14, 2025
- Berg, C. O. (Carl Oscar) 1839-1903 Jan 8, 2025
- Grosch, Oscar Edward 1863-1928 Jan 6, 2025
- Olsson, Hagar 1893-1978 Jan 6, 2025
- O'Connor, William Frederick Travers, Sir 1870-1943 Dec 30, 2024
- Plumer of Messines, Herbert Charles Onslow Plumer, Viscount 1857-1932 Dec 30, 2024
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