Confederate soldiers on the march
This is one of the most historically valuable photos ever taken of the war because it is the only known photograph that shows Confederate soldiers on the march in enemy territory. (Maryland was indeed enemy territory to them, because slave-holding Maryland elected to remain in the Union.) What’s haunting about this photo is that, statistically speaking, before the end of the month one-third of all the men in that picture would be dead, wounded or missing.
Historical Society of Frederick County (Maryland)
If the above had been a photo of yankees in the South, the dry good store and town would be in ruin.