Part of the Smithsonian Institution, the museum has a broad variety of American art, with more than 7,000 artists represented,[47] that covers all regions and art movements found in the United States. SAAM contains the world's largest collection of New Deal art; a collection of contemporary craft, American impressionist paintings, and masterpieces from the Gilded Age; photography, modern folk art, works by African American and Latino artists, images of western expansion, and realist art from the first half of the twentieth century. Among the significant artists represented in its collection are Nam June Paik, Jenny Holzer, David Hockney, Georgia O'Keeffe, John Singer Sargent, Albert Pinkham Ryder, Albert Bierstadt, Frances Farrand Dodge, Edmonia Lewis, Thomas Moran, James Gill, Edward Hopper, John William "Uncle Jack" Dey, Karen LaMonte[48] and Winslow Homer.[3]