Well, worst feature about the photo, if they are prostitutes, would be we'd be looking at women with awful stories. It was frequently a matter of this work or starve. An army can employ only so many laundresses. We'll never know how many women, North and South, were displaced by war. Husband dead, wives were evicted, or the war shattered your home, homeless, poor women had children to feed. It was a brutal era anyway, with children working in factories because their paycheck was needed.
We don't hear a lot about how ugly it could be. Female soldiers, despite what we hear of those who were discovered and just sent home, were always getting pitched into jail as prostitutes because if a female was anywhere around an army, well, of course that's what they were doing.
One more thing. When arrested, their names were printed in the newspapers- reports mentioned men were there, too, but never printed their names. Have quite a few clippings as proof.