David Porter (May 23, 1840 – March 3, 1843) Dabney Smith Carr (February 29, 1844 – October 20, 1849) George Perkins Marsh (March 11, 1850 – December 19, 1853) Carroll Spence (February 9, 1854 – December 12, 1857) James Williams (May 27, 1858 – May 25, 1861) Edward Joy Morris (October 22, 1861 – October 25, 1870) Wayne MacVeagh (October 25, 1870 – June 10, 1871) George H. Boker (March 25, 1872 – May 1, 1875) Horace Maynard (June 12, 1875 – July 15, 1880) James Longstreet (December 14, 1880 – April 29, 1881) Lewis Wallace (September 6, 1881 – September 4, 1882)