Rear Admiral Frederick Lois Riefkohl, a native of Maunabo, Puerto Rico, was an officer in the United States Navy and the first Puerto Rican to graduate from the United States Naval Academy and to be awarded the Navy Cross. The Navy Cross is the second highest medal, after the Medal of Honor, that can be awarded by the U.S. Navy for heroism or distinguished service. He was a World War I Navy Cross recipient who served as Captain of the USS Vincennes during World War II.

USS Vincennes (CL/CA-44) was a United States Navy New Orleans-class cruiser, sunk at the Battle of Savo Island in 1942. She was the second ship to bear the name.