| 140701 | December 13 | Death | 1862 – Thomas Reade Rootes Cobb, American general, lawyer, and politician (b. 1823) |
| 140702 | December 13 | Death | 1863 – Christian Friedrich Hebbel, German poet and playwright (b. 1813) |
| 140703 | December 13 | Death | 1868 – Carl Friedrich Philipp von Martius, German botanist and explorer (b. 1794) |
| 140704 | December 13 | Death | 1881 – August Šenoa, Croatian author and poet (b. 1838) |
| 140705 | December 13 | Death | 1883 – Victor de Laprade, French poet and critic (b. 1812) |
| 140706 | December 13 | Death | 1893 – Georg August Rudolph, German politician, 3rd Mayor of Marburg (b. 1816) |
| 140707 | December 13 | Death | 1895 – Ányos Jedlik, Hungarian physicist and engineer (b. 1800) |
| 140708 | December 13 | Death | 1908 – Augustus Le Plongeon, French photographer and historian (b. 1825) |
| 140709 | December 13 | Death | 1919 – Woldemar Voigt, German physicist and academic (b. 1850) |
| 140710 | December 13 | Death | 1922 – Arthur Wesley Dow, American artist (b. 1857) |
| 140711 | December 13 | Death | 1922 – Hannes Hafstein, Icelandic poet and politician, 1st Prime Minister of Iceland (b. 1861) |
| 140712 | December 13 | Death | 1924 – Samuel Gompers, English-American labor leader, founded the American Federation of Labor (b. 1850) |
| 140713 | December 13 | Death | 1930 – Fritz Pregl, Slovenian-Austrian chemist and physician, Nobel Prize laureate (b. 1869) |
| 140714 | December 13 | Death | 1931 – Gustave Le Bon, French psychologist, sociologist, and anthropologist (b. 1840) |
| 140715 | December 13 | Death | 1932 – Georgios Jakobides, Greek painter and sculptor (b. 1853) |
| 140716 | December 13 | Death | 1934 – Thomas A. Watson, American assistant to Alexander Graham Bell (b. 1854) |
| 140717 | December 13 | Death | 1935 – Victor Grignard, French chemist and academic, Nobel Prize laureate (b. 1871) |
| 140718 | December 13 | Death | 1940 – Manuel de Escandón, Mexican polo player (b. 1857) |
| 140719 | December 13 | Death | 1940 – George Regas, Greek-American actor (b. 1890) |
| 140720 | December 13 | Death | 1942 – Wlodimir Ledóchowski, Austrian-Polish religious leader, 26th Superior-General of the Society of Jesus (b. 1866) |
| 140721 | December 13 | Death | 1944 – Wassily Kandinsky, Russian-French painter and theorist (b. 1866) |
| 140722 | December 13 | Death | 1944 – Lupe Vélez, Mexican-American actress and singer (b. 1908) |
| 140723 | December 13 | Death | 1945 – Irma Grese, German concentration camp guard (b. 1923) |
| 140724 | December 13 | Death | 1945 – Josef Kramer, German concentration camp commandant (b. 1906) |
| 140725 | December 13 | Death | 1945 – Elisabeth Volkenrath, Polish-German concentration camp supervisor (b. 1919) |
| 140726 | December 13 | Death | 1947 – Henry James, American lawyer and author (b. 1879) |
| 140727 | December 13 | Death | 1947 – Nicholas Roerich, Russian archaeologist, painter, and philosopher (b. 1874) |
| 140728 | December 13 | Death | 1950 – Abraham Wald, Hungarian mathematician and academic (b. 1902) |
| 140729 | December 13 | Death | 1954 – John Raymond Hubbell, American director and composer (b. 1879) |
| 140730 | December 13 | Death | 1955 – Egas Moniz, Portuguese psychiatrist and neurosurgeon, Nobel Prize laureate (b. 1874) |