Letter from Solomon G. Brown to S. F. Baird, July 15, 1864, by Brown, Solomon Galleon c. 1829-1906, , Smithsonian Archives - History Div, Letter from Solomon G. Brown, the first African American employee of the Smithsonian Institution, to then Assistant Secretary Spencer F. Baird, later the second Secretary of the Smithsonian, reporting on the Confederate troops' march on Washington, D.C. Brown describes the fear in the city at the approach of the rebels, but informed Baird that the troops had not invaded and D.C. was now safe. 4 pages..