Letter to Joseph Henry [manuscript], 1870 March 11.
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Joseph Henry (1797-1878, APS 1835), a physicist, was the first secretary and director of the Smithsonian Institution, a post he retained for over three decades. Henry was a leading experimental scientist whose contributions include several discoveries in the field of electromagnetics. He has been credited with the invention of the electromagnet and the telegraph, among other things. Henry was born in 1797 in Albany, New York, the son of William Henry, a teamster, and his wife An...
Robert Edward Lee (1807-1870) served as General of the Confederate Army in the U.S. Civil War and was president of Washington College in Lexington, Virginia from 1865 to 1870. Lee spent the first twenty-three years of his military career in the U.S. Army Corps of Engineers. From 1837 to 1841 he was superintending engineer for the harbor of St. Louis and the upper Mississippi and Missouri rivers. Robert E. Lee was a United States Army officer, 1829-1861; commander of Virginia forces in the ...