Places
- Maine -- Quoddy1
- Marengo County (Ala.) -- History1
- Martinsburg, (W. Va.) -- History -- Civil War, 1861-18651
- Mexican War, 1846-1848 -- Art and the war1
- Mississippi -- Washington County1
- Missouri -- History -- Civil War, 1861-18651
- Morris Island (S.C.)1
- New Market (Va.) -- History2
- New Market (Va.) -- History -- 19th century2
- New Market Battlefield Historical Park (Va.)1
- North Carolina -- History -- Civil War, 1861-18651
- Ohio -- Civil War, 1861-18651
- Petersburg (Va.)1
- Philippines -- Corregidor Island1
- Richmond (Va.) -- History -- Civil War, 1861-18653