| 51541 | May.04 | Death | 1880 – Edward Clark, American lawyer and politician, 8th Governor of Texas (b. 1815) |
| 51542 | May.04 | Death | 1901 – John Jones Ross, Canadian lawyer and politician, 7th Premier of Quebec (b. 1831) |
| 51543 | May.04 | Death | 1903 – Gotse Delchev, Ottoman educator and activist (b. 1872) |
| 51544 | May.04 | Death | 1916 – Edward Daly, Irish commander (b. 1891) |
| 51545 | May.04 | Death | 1916 – Joseph Plunkett, Irish journalist and poet (b. 1887) |
| 51546 | May.04 | Death | 1916 – Willie Pearse, Irish activist (b. 1891) |
| 51547 | May.04 | Death | 1919 – Milan Rastislav Štefánik, Slovak general and politician (b. 1880) |
| 51548 | May.04 | Death | 1922 – Viktor Kingissepp, Estonian politician (b. 1888) |
| 51549 | May.04 | Death | 1923 – Ralph McKittrick, American golfer and tennis player (b. 1877) |
| 51550 | May.04 | Death | 1924 – E. Nesbit, English author and poet (b. 1858) |
| 51551 | May.04 | Death | 1937 – Noel Rosa, Brazilian singer-songwriter and guitarist (b. 1910) |
| 51552 | May.04 | Death | 1938 – Kanō Jigorō, Japanese founder of judo (b. 1860) |
| 51553 | May.04 | Death | 1938 – Carl von Ossietzky, German journalist and activist, Nobel Prize laureate (b. 1889) |
| 51554 | May.04 | Death | 1945 – Fedor von Bock, German field marshal (b. 1880) |
| 51555 | May.04 | Death | 1953 – Alexandre Pharamond, French rugby player (b. 1876) |
| 51556 | May.04 | Death | 1955 – George Enescu, Romanian pianist, composer, and conductor (b. 1881) |
| 51557 | May.04 | Death | 1961 – Johannes Hengeveld, Dutch tug of war competitor (b. 1894) |
| 51558 | May.04 | Death | 1961 – Anita Stewart, American actress and producer (b. 1895) |
| 51559 | May.04 | Death | 1964 – Karl Robert Pusta, Estonian politician, 4th Estonian Minister of Foreign Affairs (b. 1883) |
| 51560 | May.04 | Death | 1969 – Osbert Sitwell, English-Italian author and poet (b. 1892) |
| 51561 | May.04 | Death | 1970 – Victims of the Kent State shootingsAllison Krause, American student (b. 1951)Jeffrey Miller, American student (b. 1950)Sandra Scheuer, American student (b. 1949)William Knox Schroeder, American student (b. 1950) |
| 51562 | May.04 | Death | 1970 – Eugenia Livanos, Greek wife of Stavros Niarchos (b. 1927) |
| 51563 | May.04 | Death | 1971 – Seamus Elliott, Irish cyclist (b. 1934) |
| 51564 | May.04 | Death | 1972 – Edward Calvin Kendall, American chemist and academic, Nobel Prize laureate (b. 1886) |
| 51565 | May.04 | Death | 1972 – Manny Ziener, German actress (b. 1887) |
| 51566 | May.04 | Death | 1973 – Jane Bowles, American author and playwright (b. 1917) |
| 51567 | May.04 | Death | 1975 – Moe Howard, American actor, singer, and screenwriter (b. 1897) |
| 51568 | May.04 | Death | 1976 – Frank Strahan, Australian public servant (b. 1886) |
| 51569 | May.04 | Death | 1980 – Josip Broz Tito, Yugoslav field marshal and politician, 1st President of Yugoslavia (b. 1892) |
| 51570 | May.04 | Death | 1981 – C. Loganathan, Sri Lankan banker (b. 1913) |