Armand V. Feigenbaum

American businessman.

Born April 6th, 1922 in New York City.

Died November 13th, 2014 at 92 years old in Pittsfield.

Theodor Billroth

German surgeon (1829-1894).

Born April 26th, 1829 in Bergen auf Rügen.

Died February 6th, 1894 at 64 years old in Opatija.

Gerald Brenan

British writer and hispanist (1894-1987).

Born April 7th, 1894 in Sliema.

Died January 19th, 1987 at 92 years old in Alhaurín el Grande.

Bill Gosper

American mathematician, programmer/hacker.

Born April 26th, 1943 (age 83 years) in New Jersey. ^[ref]

Laura Vicuña

Chilean child who was beatified by the catholic church (1891–1904).

Born April 5th, 1891 in Santiago.

Died January 22nd, 1904 at 12 years old in Junín de los Andes (tuberculosis).

Buster Williams

American musician.

Born April 17th, 1942 (age 84 years) in Camden. ^[ref]

Lucie Mannheim

German actress and singer (1899–1976).

Born April 30th, 1899 in Berlin.

Died July 28th, 1976 at 77 years old in Braunlage.

Richard Rush

American movie director, scriptwriter, and producer (1929-2021).

Born April 15th, 1929 in New York City.

Died April 8th, 2021 at 91 years old in Los Angeles. ^[ref]

John Russell Pope

American architect (1874–1937).

Born April 24th, 1874 in Manhattan.

Died August 27th, 1937 at 63 years old in Manhattan.

Jacob Viner

Canadian economist (1892–1970).

Born May 3rd, 1892 in Montreal.

Died September 12th, 1970 at 78 years old in Princeton.