Benjamin O. Davis Sr. was the first Black general in the American military. He served for 50 years as a temporary first lieutenant at an all-Black unit during the Spanish American War. Throughout his service, Davis Sr. was as a professor of military science at Tuskegee and Wilberforce University, a commander of the 369th Regiment, New York National Guard, and special assistant to the Secretary of the Army. When he retired in 1948, President Harry Truman oversaw the public ceremony. Davis Sr. is buried at Arlington National Cemetery.