Adolph Dietrich Friedrich Reinhardt ("Ad" Reinhardt) (December 24, 1913-August 30, 1967) was a painter, writer, and pioneer of conceptual and minimal art. He was also a critic of abstract expressionism. Reinhardt's earliest exhibited paintings avoided representation, but show a steady progression away from objects and external reference. Wikipedia
b. 1913, Buffalo, N.Y.; d. 1967, New York City Ad Reinhardt was born Adolph Dietrich Friedrich Reinhardt on December 24, 1913, in Buffalo, New York. www.guggenheimcollection.org/site/artist_bio_133A.html
The definitive Wikipedia entry for Ad Reinhardt. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ad_Reinhardt
