Subject
- Military engineers1
- Military occupation1
- Military passes1
- Military service, Voluntary1
- Military uniforms1
- Militia1
- Mobile hospitals1
- Moon1
- Morris Island, Battle of, S.C., 1863 (July 10-September 7)1
- Mortars1
- Mosquitoes1
- Murder1
- Navy-yards and naval stations1
- Negotiation1
- Night1
- Oaths1
- Oral examinations1
- Oxen1
- Parades1
- Photographic portrait1