| 42571 | April 13 | Birth | 1944 – Susan Davis, American social worker and politician |
| 42572 | April 13 | Birth | 1945 – Ed Caruthers, American high jumper |
| 42573 | April 13 | Birth | 1945 – Tony Dow, American actor, director, and producer |
| 42574 | April 13 | Birth | 1945 – Lowell George, American singer-songwriter, guitarist, and producer (Little Feat and The Mothers of Invention) (d. 1979) |
| 42575 | April 13 | Birth | 1945 – Bob Kalsu, American football player and lieutenant (d. 1970) |
| 42576 | April 13 | Birth | 1945 – Judy Nunn, Australian actress and screenwriter |
| 42577 | April 13 | Birth | 1946 – Al Green, American singer-songwriter, producer, and pastor |
| 42578 | April 13 | Birth | 1946 – Christopher Strauli, English actor |
| 42579 | April 13 | Birth | 1947 – Rae Armantrout, American poet and academic |
| 42580 | April 13 | Birth | 1947 – Mike Chapman, Australian-English songwriter and producer |
| 42581 | April 13 | Birth | 1947 – Jean-Jacques Laffont, French economist and academic (d. 2004) |
| 42582 | April 13 | Birth | 1948 – Nam Hae-il, South Korean admiral |
| 42583 | April 13 | Birth | 1948 – Drago Jančar, Slovenian author and playwright |
| 42584 | April 13 | Birth | 1949 – Len Cook, New Zealand-English mathematician and statistician |
| 42585 | April 13 | Birth | 1949 – Frank Doran, Scottish lawyer and politician |
| 42586 | April 13 | Birth | 1949 – Christopher Hitchens, English-American journalist and author (d. 2011) |
| 42587 | April 13 | Birth | 1949 – Ricardo Zunino, Argentinian race car driver |
| 42588 | April 13 | Birth | 1950 – Joseph Paul Franklin, American serial killer (d. 2013) |
| 42589 | April 13 | Birth | 1950 – Terry Lester, American actor (d. 2003) |
| 42590 | April 13 | Birth | 1950 – Ron Perlman, American actor and producer |
| 42591 | April 13 | Birth | 1950 – William Sadler, American actor |
| 42592 | April 13 | Birth | 1951 – Leszek Borysiewicz, Welsh immunologist and academic |
| 42593 | April 13 | Birth | 1951 – Peabo Bryson, American singer-songwriter and producer |
| 42594 | April 13 | Birth | 1951 – Peter Davison, English actor and singer |
| 42595 | April 13 | Birth | 1951 – Joachim Streich, German footballer and manager |
| 42596 | April 13 | Birth | 1951 – Max Weinberg, American drummer (E Street Band and Jimmy Vivino and the Basic Cable Band) |
| 42597 | April 13 | Birth | 1952 – Erick Avari, Indian-American actor |
| 42598 | April 13 | Birth | 1952 – Ron Dittemore, American businessman |
| 42599 | April 13 | Birth | 1952 – David Drew, English lawyer and politician |
| 42600 | April 13 | Birth | 1952 – Jonjo O'Neill, Irish jockey and trainer |