USS O'Callahan (FF-1051)
USS O'Callahan (FF-1051) was a U.S. Navy Garcia class destroyer escort, later reclassified as a frigate. She was named for Chaplain Lieutenant Commander Joseph T. O'Callahan, a Medal of Honor recipient for his rescue of crewmen on the aircraft carrier Franklin (CV-13) after it was hit and severely damaged by enemy bombs.
Read more about USS O'Callahan (FF-1051): History