| 42481 | April 13 | Birth | 1891 – Maurice Buckley, Australian sergeant, Victoria Cross recipient (d. 1921) |
| 42482 | April 13 | Birth | 1891 – Nella Larsen, American nurse, librarian, and author (d. 1964) |
| 42483 | April 13 | Birth | 1891 – Robert Scholl, German accountant and politician (d. 1973) |
| 42484 | April 13 | Birth | 1892 – Sir Arthur Harris, 1st Baronet, English air marshal (d. 1984) |
| 42485 | April 13 | Birth | 1892 – Robert Watson-Watt, Scottish engineer, invented the Radar (d. 1973) |
| 42486 | April 13 | Birth | 1894 – Arthur Fadden, Australian accountant and politician, 13th Prime Minister of Australia (d. 1973) |
| 42487 | April 13 | Birth | 1894 – Joie Ray, American runner (d. 1978) |
| 42488 | April 13 | Birth | 1897 – Werner Voss, German lieutenant and pilot (d. 1917) |
| 42489 | April 13 | Birth | 1899 – Alfred Mosher Butts, American architect and game designer, created Scrabble (d. 1993) |
| 42490 | April 13 | Birth | 1899 – Harold Osborn, American high jumper and decathlete (d. 1975) |
| 42491 | April 13 | Birth | 1900 – Pierre Molinier, French painter and photographer (d. 1976) |
| 42492 | April 13 | Birth | 1901 – Jacques Lacan, French psychiatrist and academic (d. 1981) |
| 42493 | April 13 | Birth | 1901 – Alan Watt, Australian public servant and diplomat, Australian Ambassador to Japan (d. 1988) |
| 42494 | April 13 | Birth | 1902 – Philippe de Rothschild, French race car driver, playwright, and producer (d. 1988) |
| 42495 | April 13 | Birth | 1902 – Marguerite Henry, American author (d. 1997) |
| 42496 | April 13 | Birth | 1904 – David Robinson, English businessman and philanthropist (d. 1987) |
| 42497 | April 13 | Birth | 1906 – Samuel Beckett, Irish-French author, playwright, and director, Nobel Prize laureate (d. 1989) |
| 42498 | April 13 | Birth | 1906 – Bud Freeman, American saxophonist, composer, and bandleader (d. 1991) |
| 42499 | April 13 | Birth | 1906 – Ed Hamm, American long jumper and coach (d. 1982) |
| 42500 | April 13 | Birth | 1906 – Klaudia Taev, Estonian opera singer and educator (d. 1985) |
| 42501 | April 13 | Birth | 1907 – Harold Stassen, American lawyer and politician, 25th Governor of Minnesota (d. 2001) |
| 42502 | April 13 | Birth | 1909 – Stanislaw Ulam, Ukrainian-American mathematician and academic (d. 1984) |
| 42503 | April 13 | Birth | 1909 – Eudora Welty, American author and photographer (d. 2001) |
| 42504 | April 13 | Birth | 1911 – Ico Hitrec, Croatian footballer and manager (d. 1946) |
| 42505 | April 13 | Birth | 1911 – Jean-Louis Lévesque, Canadian businessman and philanthropist (d. 1994) |
| 42506 | April 13 | Birth | 1911 – Nino Sanzogno, Italian conductor and composer (d. 1983) |
| 42507 | April 13 | Birth | 1913 – Dave Albritton, American high jumper and coach (d. 1994) |
| 42508 | April 13 | Birth | 1913 – Kermit Tyler, American lieutenant and pilot (d. 2010) |
| 42509 | April 13 | Birth | 1914 – Orhan Veli Kanık, Turkish poet and author (d. 1950) |
| 42510 | April 13 | Birth | 1916 – Phyllis Fraser, American actress, journalist, and publisher, co-founded Beginner Books (d. 2006) |