Yes, there were several recorded instances of contrabands and free blacks in Maryland and Pennsylvania who were taken south. A member of the 3rd Georgia recalled a native of Pennsylvania being captured, and put in a group that was tied together with a cord and led by a guard over gullies, ditches, streams, mud holes, etc. Near Gettysburg, soldiers informed a matron of a household that her black maid had to come with them, but a wounded Confederate officer interceded to protect the maid if she would assist other wounded soldiers in the house. On the other hand, at Waynesboro, PA, a member of the 17th Virginia Cavalry found five blacks from Maryland who were hiding out, and let them off, even leaving behind some food upon learning they had not eaten in three days. Members of the 9th Virginia Cavalry captured many contrabands and several free blacks, some of whom were "recognized" and claimed. But it's not clear if such recognition was always strictly accurate. A soldier named William Christian, possibly Col. Christian of the 55th Virginia, was offered his choice of black captives, but his "humanity revolted at taking the poor devils away from their homes. They were so scared that I turned them all loose." However, such humanity seems to be the exception rather than the rule after examining all of the reported cases.