In the American Civil war there were units on both sides which had uniforms heavily influenced by their individual heritage, fashion crazes or special requirements.

These objects belonged to the men and boys who fought on the front lines for both Confederate ... possessions soldiers kept while enlisted; on many are personal touches added by the owner. Some ...

So, effectively, any soldiers that visited Mount Vernon, Confederate or Union soldiers, came out of uniform, with absolutely no flags or anything like that, because it was thought to be totally ...