Andrews' Medal of Honor recognized his conduct in action against Korean forts in June 1871. At the front of his a small boat, he measured the depth of shallow waters while under a heavy fire.[2]
The words of Andrews' citation explain:
On board the USS Benicia in action against Korean forts on 9 and 10 June 1871. Stationed at the lead in passing the forts, Andrews stood on the gunwale on the Benicia's launch, lashed to the ridgerope. He remained unflinchingly in this dangerous position and gave his soundings with coolness and accuracy under a heavy fire.[2]
