Subjects
- Manuscripts (document genre)1
- Mecklenburg County (Va.)--History--19th century1
- Medical practice--Virginia--History1
- Medicine1
- Memorandums4
- Mentally ill--United States--Diaries1
- Merchants--Massachusetts1
- Merchants--Virginia--Richmond1
- Merchants--West Virginia--Jefferson County1
- Middle East--Study and teaching1
- Military Affairs - United States1
- Military Medicine3
- Military records1
- Mosquitoes5