Alexander Thomas Augusta
Alexander Thomas Augusta was a surgeon, veteran of the American Civil War, and the first black professor of medicine in the United States. After gaining his medical education in Toronto, Canada from 1850 to 1856, he set up a practice there. He returned to the United States shortly before the start of the American Civil War.
Augusta was born in 1825 to free people of color in Norfolk, Virginia. As a young man, he began to learn to read while working as a barber, although it was illegal for free blacks to do so in Virginia at that time. The state had restricted rights of free people of color following the Nat Turner slave rebellion of 1831.
Source: Wikipedia