List of Medal of Honor recipients in non-combat incidents
Prior to 1963, the Medal of Honor could be awarded for actions not involving direct combat with "an enemy of the United States" or "opposing foreign force [s]" (actions against a party in which the U.S. is not directly engaged in war with). 204 men earned the medal in this way.
Source: Wikipedia — List of Medal of Honor recipients in non-combat incidents (CC BY-SA 4.0)