Louis Delétraz

Swiss racing driver.

Born April 22nd, 1997 (age 29 years) in Geneva.

Brian Behlendorf

Executive, director, and software programmer.

Born March 30th, 1973 (age 53 years).

Wangari Muta Maathai

Kenyan environmentalist and politician who won the nobel peace prize in 2004 (1940–2011).

Born April 1st, 1940 in Nyeri. ^[ref]

Died September 25th, 2011 at 71 years old in Nairobi (ovarian cancer). ^[ref]

Rudolf Serkin

Bohemian-born american pianist.

Born March 28th, 1903 in Cheb.

Died May 8th, 1991 at 88 years old in Guilford (cancer).

Aurora Miranda

Brazilian entertainer (1915–2005).

Born April 20th, 1915 in Rio de Janeiro.

Died December 22nd, 2005 at 90 years old in Rio de Janeiro (myocardial infarction).

Hannes Wolf

Austrian footballer.

Born April 16th, 1999 (age 27 years) in Graz.

Jennifer Rowe

Australian fiction writer, for children as emily rodda (pseudonym), mystery for adults as jennifer rowe (real name).

Born April 2nd, 1948 (age 78 years) in Sydney.

Adrian Boult

British conductor (1889–1983).

Born April 8th, 1889 in Chester.

Died February 22nd, 1983 at 93 years old in London.

Rosamaria Montibeller

Brazilian volleyball player.

Born April 9th, 1994 (age 32 years) in Nova Trento. ^[ref]

Warren Magnuson

American politician (1905–1989).

Born April 12th, 1905 in Moorhead.

Died May 20th, 1989 at 84 years old in Seattle.