Important Informel Artists Leading abstract painters of the Art Informel movement included Jean Fautrier (1898 - 1964), Wols (Alfred Otto Wolfgang Sculze)(1913 - 51), Hans Hartung (1904 - 89). (visual-arts-cork.com)
Warren Rohrer (1927 — 1995) was born in Lancaster County, Pennsylvania and became one of Philadelphia's leading abstract painters in the late 20th century. (locksgallery.com)
But it's always worth remembering that «look» still starts the process: even in the very early 1960s, he was concerned that Morris Louis and other leading abstract painters had reduced the legacy of the surrealists and expressionists to a decorative mannerism. (johnhoyland.com)