I'm not so sure about the VC but the MoH had an interesting beginning. A civilian named Andrews went on a mission with soldiers to wreck havoc on the Confederate rail lines. Stealing a train (The General) his group did some daring stuff to get back to the Union lines.
The very first MoHs was awarded to his group except the leader - Andrews - could not because he was a civilian! Heres the story about it -
http://www.medalofhonor.com/AndrewsRaid.htm