| 105691 | September 15 | Death | 1841 – Alessandro Rolla, Italian violinist and composer (b. 1757) |
| 105692 | September 15 | Death | 1842 – Pierre Baillot, French violinist and composer (b. 1771) |
| 105693 | September 15 | Death | 1842 – Francisco Morazán, Guatemalan general, lawyer, and politician, President of Central American Federation (b. 1792) |
| 105694 | September 15 | Death | 1852 – Johann Karl Simon Morgenstern, German-Estonian philologist and academic (b. 1770) |
| 105695 | September 15 | Death | 1859 – Isambard Kingdom Brunel, English architect and engineer, designed the Great Western Railway (b. 1806) |
| 105696 | September 15 | Death | 1864 – John Hanning Speke, English soldier and explorer (b. 1827) |
| 105697 | September 15 | Death | 1883 – Joseph Plateau, Belgian physicist and academic (b. 1801) |
| 105698 | September 15 | Death | 1885 – Jumbo, Sudanese-Canadian elephant (b. 1861) |
| 105699 | September 15 | Death | 1893 – Thomas Hawksley, English engineer (b. 1807) |
| 105700 | September 15 | Death | 1915 – Ernest Gagnon, Canadian organist and composer (b. 1834) |
| 105701 | September 15 | Death | 1921 – Roman von Ungern-Sternberg, Austrian-Russian general (b. 1886) |
| 105702 | September 15 | Death | 1926 – Rudolf Christoph Eucken, German philosopher and academic, Nobel Prize laureate (b. 1846) |
| 105703 | September 15 | Death | 1930 – Milton Sills, American actor and screenwriter (b. 1882) |
| 105704 | September 15 | Death | 1938 – Thomas Wolfe, American novelist (b. 1900) |
| 105705 | September 15 | Death | 1940 – William B. Bankhead, American lawyer and politician, 47th Speaker of the United States House of Representatives (b. 1874) |
| 105706 | September 15 | Death | 1945 – André Tardieu, French journalist and politician, 97th Prime Minister of France (b. 1876) |
| 105707 | September 15 | Death | 1945 – Anton Webern, Austrian composer and conductor (b. 1883) |
| 105708 | September 15 | Death | 1945 – Linnie Marsh Wolfe, American librarian and author (b. 1881) |
| 105709 | September 15 | Death | 1952 – Hugo Raudsepp, Estonian author and playwright (b. 1883) |
| 105710 | September 15 | Death | 1965 – Steve Brown, American bassist (New Orleans Rhythm Kings) (b. 1890) |
| 105711 | September 15 | Death | 1972 – Ulvi Cemal Erkin, Turkish composer and educator (b. 1906) |
| 105712 | September 15 | Death | 1972 – Baki Süha Ediboğlu, Turkish poet and author (b. 1915) |
| 105713 | September 15 | Death | 1972 – Geoffrey Fisher, English archbishop and academic (b. 1887) |
| 105714 | September 15 | Death | 1973 – Gustaf VI Adolf of Sweden (b. 1882) |
| 105715 | September 15 | Death | 1973 – Víctor Jara, Chilean singer-songwriter, poet, and director (b. 1932) |
| 105716 | September 15 | Death | 1975 – Franco Bordoni, Italian race car driver and pilot (b. 1913) |
| 105717 | September 15 | Death | 1978 – Robert Cliche, Canadian lawyer, judge, and politician (b. 1921) |
| 105718 | September 15 | Death | 1978 – Willy Messerschmitt, German engineer and academic, designed the Messerschmitt Bf 109 (b. 1898) |
| 105719 | September 15 | Death | 1979 – Tommy Leonetti, American singer-songwriter and actor (b. 1929) |
| 105720 | September 15 | Death | 1980 – Bill Evans, American pianist and composer (b. 1929) |