| Credit: | unknown photographer |
|---|---|
| Date: | 1861-1862 |
| Negative Size: | stereo |
| Equipment: | bayonet; flag; long gun |
| Locations & Lines: | Alexandria VA; Fort Lyon VA; Virginia |
| Military Units: | Army of the Potomac; US Army |
| Persons: | Heintzelman (Samuel P.) |
| Structures & Establishments: | Gen. Heintzelman’s headquarters (Alexandria VA) |
| Sources: | Library of Congress; USAMHI – MOLLUS collection |
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