Subject
- Military campaigns35
- Operational rations (Military supplies)35
- Ammunition33
- Courts-martial and courts of inquiry30
- Aerial surveys29
- Tourists29
- Engineering and construction26
- Military courts25
- Military deserters21
- Walls21
- Punishment18
- Military administration15
- Cranes, derricks, etc14
- Sick14
- Military architecture13
- Military intelligence12
- Visitors' centers11
- Battle casualties10
- Fort Sumter (Charleston, S.C.)10
- Letters8