 Recent acquisitions include artwork by Doug Aitken, Jennifer Allora & Guillermo Calzadilla, Polly Apfelbaum, Sanford Biggers, Ellen Gallagher, Wade Guyton, Matthew Day Jackson, Wangechi Mutu, and Javier Téllez.Princeton's photography collection is one of the leading museum collections in the United States.The start of the collection was the 1949 gift by retired director Frank Jewett Mather Jr. of Alfred Stieglitz's landmark image "The Steerage".