FORT WORTH, TX.- To mark its 50th Anniversary, the Amon Carter Museum of American Art announces that it has acquired an important painting by Mary Cassatt, Woman Standing, Holding a Fan, created in 1878–79. The work is one of only two known canvases painted by the artist almost entirely in the medium of distemper and represents a key moment in her transformation into an Impressionist. “A great Cassatt painting has eluded us until now,” says Andrew Walker, director of the Amon Carter. “With her contemporaries John Singer Sargent and James McNeill Whistler, Cassatt was one of the most influential American artists living and working abroad in the 19th century; so naturally, we are thrilled to have one of her paintings in our collection. It is particularly rewarding that the work is unique in scale and breathtaking in its execution.” Mary Cassatt (1844–