Description: [view in Spanish][edan-image:id=siris_sic_6874,size=185,left]Alexander Wetmore, ornithologist and avian paleontologist, was the Smithsonian's sixth Secretary (1945-1952). As a young biologist with the U.S. Bureau of Biological Survey, Wetmore conducted extensive fieldwork in Latin America. He spent 1911 in Puerto Rico studying bird life, and later traveled through South
Description: Joseph Henry,the first Smithsonian Secretary, served from 1846 to 1878 and was a physicist who conducted pioneering research in electromagnetism.