How a Businesswoman Became a Voice for Art’s Black Models. Posing Modernity: The Black Model From Manet and Matisse to Today (Exhibit), Manet, Edouard, Matisse, Henri, Murrell, Denise, Thomas, Mickalene, Wallach, Miriam and Ira D, Art Gallery, Art, Blacks, Black People, Race and Ethnicity, Discrimination