708848 Portrait of Leo Stein (1872-1947), 1937 (gelatin silver print) by Vechten, Carl Van (1880-1964); Library of Congress, Washington D.C., USA; (add.info.: Leo Stein (1872 ??July 29, 1947) was an American art collector and critic. He was born in Allegheny, Pennsylvania, the elder brother of Gertrude Stein. He became an influential promoter of 20th-century paintings. Beginning in 1892, he studied at Harvard University in Cambridge, Massachusetts, for two years); American, out of copyright.