Dr. Wendy Castenell views Jackson Pollock’s painting, “Number 1A, 1948” at the Museum of Modern Art in New York. Posted on: August 7th, 2015 Dr. Wendy Castenell views Jackson Pollock’s painting, “Number 1A, 1948” at the Museum of Modern Art in New York. Dr. Wendy Castenell views Jackson Pollock’s painting, “Number 1A, 1948” at the Museum of Modern Art in New York.