In 1976 and 1978, he exhibited his work at Lotus Gallery, Soho, NY, one of Soho's first galleries.
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Later, in 1992, Walter opened his own gallery in Soho, where he showed Ralph's work alongside the work of old friends George McNeil and Stephen Pace.
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Fellow faculty included Ernie Briggs, Herman Cherry, Ed Dougmore, Franz Klein, Jacob Lawrence, George McNeil, Stephen Pace, and Philip Pearlstein.
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The 1953 Annual Exhibition of Contemporary American Painting at the Whitney Museum included Ralph's work, along with the work of Milton Avery, /Ralston Crawford, Willem de Kooning, Adolph Gottlieb, Philip Guston, Georgia O'Keeffe, and Jackson Pollock.
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He was awarded a residency at the Tiffany Foundation in Oyster Bay, where he stayed to paint for the summer.
Ralph Waldo Emerson | Ralph Lauren | Ralph Nader | Ralph Vaughan Williams | Ralph Fiennes | Ralph Steadman | Ralph Macchio | Ralph Bunche | Ralph Bakshi | Ralph Richardson | Ralph Stanley | Ralph McTell | Ralph Ellison | Ralph Jordan | Ralph | Ralph Abercromby | Ralph Molnar | Ralph Records | Ralph Peterson, Jr. | Ralph Klein | Ralph H. Fowler | Ralph Tresvant | Ralph Moore | Ralph Wilson | Ralph Terry | Ralph "Shug" Jordan | Ralph Peterson | Ralph Percy, 12th Duke of Northumberland | Ralph Inzunza | Ralph Darling |
Among his students was Ralph Wickiser, a teacher and administrator at Pratt Institute, and Alice Baber, a noted Color Field painter of the 1970s.