sentences:  On September 3, DeLoach was promoted to Rear Admiral in a ceremony held at the Navy Memorial in Washington, D.C.
  
  DeLoach was contacted by the Director of Naval Research, RADM Jay Cohen, to help search for the USS "Alligator" that went down in a storm off the coast of North Carolina in 1863, close to where the USS "Monitor" went down.Using a variety of remote sensing instruments, researchers from NOAA, the Office of Naval Research, and East Carolina University conducted the first comprehensive hunt for lost Civil War vessel.The USS "Alligator" was the first submarine built during the Civil War by the Union Navy.