John O'Neal (Medal of Honor)
John O'Neal was an Irish-born United States Navy sailor who received the Medal of Honor for heroism on April 12, 1872.Serving on board the U.S.S. Kansas, O'Neal displayed great coolness and self-possession at the time Comdr. A. F. Crosman and others were drowned near Greytown, Nicaragua, 12 April 1872, and by personal exertion prevented greater loss of life.