- Military railroads--South Carolina--Maps1
- Military railroads--United States--Maps1
- Military uniforms--South Carolina--Photographs.1
- Missouri--History--Civil War--Cartoons and caricatures.4
- Moffett, John R.--Correspondence.1
- Montgomery, Sue Thermutis, 1845-1866--Correspondence.1
- Moody family.2
- Moore, Andrew Charles, 1838-1862--Death and burial.1
- Moore, Thomas John, 1843-1919.1
- Morris Island (S.C.)--History--Civil War, 1861-1865.1
- Morris Island, Battle of, S.C., 1863 (July 10-September 7)6
- Mount Vernon (Va: Estate)--Pictorial works.1
- Nagel, Percy--Correspondence.2
- Nast, Thomas, 1840-1902.2
- Naval battles--Florida.1
- Naval battles--South Carolina--Port Royal.1
- Neuse (Ship)1
- New Orleans (La.)--History--Capture, 1862.1
- New Orleans (La.)--History--Civil War, 1861-1865--Personal narratives, Confederate.1
- Newell, R. H. (Robert Henry), 1836-19011