George Perkins Marsh, by Brady, Mathew B. 1823 (ca.)-1896, 1861, Smithsonian Archives - History Div, Portrait of George Perkins Marsh, a Representative to the United States Congress from Vermont, an advocate for use of the James Smithson bequest to create a great national library, and member of the Smithsonian Board of Regents from 1847 to 1849. This image was probably taken shortly before he left the United States to serve as U.S. Minister to Italy. Marsh was a mentor to the second Smithsonian Secretary, Spencer Fullerton Baird..