John Rewald was born on 12 May 1912 in Berlin, Germany. He was married to Alice Leglise Bellony and Anna. He died on 2 February 1994 in Manhattan, New York City, New York, USA.
One of the foremost authorities on late 19th-century art, particularly that of France, he was known for his works on Impressionism, Post-Impressionism, Cézanne, Renoir, Pissarro and Seurat.