R.P. Tolman Leaning over Display Case, by Unknown, c. 1935, Smithsonian Archives - History Div, Director of the National Collection of Fine Arts, now the Smithsonian American Art Museum, Ruel P. Tolman (1878-1954). He also worked as Assistant Curator and Curator of the United States National Museum and Acting Director of the National Gallery of Art, now the National Museum of American Art..