Submarine USS Cavalla (SS-244) and Destroyer Escort USS Stewart (DE-238)

USS Cavalla (SS/SSK/AGSS-244), a Gato-class submarine, was a ship of the United States Navy named for the cavalla, a salt water fish of the pompano family inhabiting waters off the eastern coast of the Americas from Cape Cod to Rio de la Plata.

It was on her maiden patrol that Cavalla rendered the distinguished service that earned her a Presidential Unit Citation. En route to her station in the eastern Philippines, she made contact with a large Japanese task force 17 June 1944. Cavalla tracked the force for several hours, then relayed invaluable information which contributed heavily to the overwhelming United States victory scored in the Battle of the Philippine Sea—the famous "Marianas Turkey Shoot" on 19–20 June 1944. With this great service completed, Cavalla continued her pursuit. On 19 June she caught the carrier Shokaku landing planes and quickly fired a spread of six torpedoes for three hits, enough to send Shokaku to the bottom in 11°50′N 137°57′E. After a severe depth charging by three destroyers, Cavalla escaped to continue her patrol.

USS Stewart began her service operating out of Miami as a "school ship" training student officers. She escorted President Roosevelt in the presidential yacht down the Potomac River to rendezvous with USS Iowa in the Chesapeake bay for his mission to Casablanca and Tehran. In 1944, she commenced North Atlantic convoy operations, making 30 crossings with occasional enemy submarine and aircraft encounters. Heavy seas and icing conditions were frequent.

Stewart moved to the Pacific theater in mid 1945, and conducted training exercises out of Pearl Harbor until the end of the war. She was decommissioned in late 1945. In 1974, Stewart was formally donated to Seawolf Park. She is the second ship named for Rear Admiral Charles Stewart who commanded another ship in the historic naval fleet, USS Constitution, from 1813 to 1815.