The Secretary of the Smithsonian is its chief executive officer. Read about the fourteen individuals who have led the Institution since 1846.
' /> Joseph Henry, 1797-1878 Joseph Henry, a physicist and professor at the College of New Jersey, served as the first Secretary from 1846 to 1878. Henry formulated a Programme of Organization for the Institution; oversaw construction of the Smithsonian Institution Building, The Castle; developed scientific research laboratories; initiated a publication series; and eliminated the National Library from the Smithsonian.