| 42331 | April 12 | Death | 1981 – Joe Louis, American boxer, wrestler, and actor (b. 1914) |
| 42332 | April 12 | Death | 1983 – Carl Morton, American baseball player (b. 1944) |
| 42333 | April 12 | Death | 1984 – Edwin T. Layton, American admiral and cryptanalyst (b. 1903) |
| 42334 | April 12 | Death | 1986 – Valentin Kataev, Russian author and playwright (b. 1897) |
| 42335 | April 12 | Death | 1987 – Mike Von Erich, American wrestler (b. 1964) |
| 42336 | April 12 | Death | 1988 – Colette Deréal, French actress and singer (b. 1927) |
| 42337 | April 12 | Death | 1988 – Alan Paton, South African historian and author (b. 1903) |
| 42338 | April 12 | Death | 1989 – Gerald Flood, English actor (b. 1927) |
| 42339 | April 12 | Death | 1989 – Abbie Hoffman, American activist, co-founded Youth International Party (b. 1936) |
| 42340 | April 12 | Death | 1989 – Sugar Ray Robinson, American boxer and actor (b. 1921) |
| 42341 | April 12 | Death | 1992 – Ilario Bandini, Italian race car driver and businessman (b. 1911) |
| 42342 | April 12 | Death | 1997 – George Wald, American neurologist and academic, Nobel Prize laureate (b. 1906) |
| 42343 | April 12 | Death | 1998 – Robert Ford, Canadian poet and diplomat (b. 1915) |
| 42344 | April 12 | Death | 1999 – Marion Albert Pruett, American spree killer (b. 1949) |
| 42345 | April 12 | Death | 1999 – Boxcar Willie, American singer-songwriter (b. 1931) |
| 42346 | April 12 | Death | 2001 – Harvey Ball, American illustrator, created the smiley (b. 1921) |
| 42347 | April 12 | Death | 2002 – George Shevelov, Ukrainian-American linguist and philologist (b. 1908) |
| 42348 | April 12 | Death | 2003 – Sydney Lassick, American actor (b. 1922) |
| 42349 | April 12 | Death | 2004 – Moran Campbell, Canadian physician and academic, invented the venturi mask (b. 1925) |
| 42350 | April 12 | Death | 2005 – Ehud Manor, Israeli songwriter and translator (b. 1941) |
| 42351 | April 12 | Death | 2006 – Rajkumar, Indian actor and singer (b. 1929) |
| 42352 | April 12 | Death | 2006 – William Sloane Coffin, American minister and activist (b. 1924) |
| 42353 | April 12 | Death | 2006 – Puggy Pearson, American poker player (b. 1929) |
| 42354 | April 12 | Death | 2007 – Kevin Crease, Australian journalist (b. 1936) |
| 42355 | April 12 | Death | 2008 – Cecilia Colledge, English-American figure skater and coach (b. 1920) |
| 42356 | April 12 | Death | 2008 – Patrick Hillery, Irish physician and politician, 6th President of Ireland (b. 1923) |
| 42357 | April 12 | Death | 2008 – Jerry Zucker, Israeli-American businessman and philanthropist (b. 1949) |
| 42358 | April 12 | Death | 2009 – Marilyn Chambers, American porn actress and screenwriter (b. 1952) |
| 42359 | April 12 | Death | 2010 – Palito, Filipino actor (b. 1934) |
| 42360 | April 12 | Death | 2010 – Michel Chartrand, Canadian union leader (b. 1916) |