On May 1 1920, lightship Huron (LV-103) was launched at Consolidated Shipbuilding Co. Morris Heights, New York.
On May 1 1935, Treasury-class Coast Guard cutter USCGC Ingham (WHEC-35) was laid down at the Philadelphia Naval Shipyard.
On May 1 1935, Treasury-class Coast Guard cutter USCGC Taney (WHEC-37) was laid down at the Philadelphia Naval Shipyard.
On May 1 1943, Balao-class submarine USS Bowfin (SS-287) was commissioned for the first time, CDR Joseph H. Willingham in command.MuseumShip at USS Bowfin Submarine Museum & Park, Honolulu, HI
On 1 May 2002 Italian Sauro class Submarine Nazario Sauro (S518) was decommissioned.MuseumShip at Galata Museo de Mare - Genova, Italy
On 1 May 1980 USS Albacore AGSS-569 was struck from the Naval Vessel Register.MuseumShip at USS Albacore Submarine and Memorial, Portsmouth, NH
On 1 May 1962 the first nuclear-powered merchant ship NS Savannah was delivered to the Maritime Administration.MuseumShip NS Savannah, Baltimore, MD
On 1 May 1952 T-1-class training submarine USS Marlin - T-2 was laid down at General Dynamics Electric Boat, Groton, CT.MuseumShip at Freedom Park (Omaha, Nebraska)
On 1 May 1976 Polish Grom-class destroyer ORP Blyskawica H34 was decommissioned.MuseumShip at Muzeum Marynarki Wojennej w Gdyni, Gdynia, Poland
On 1 May 1945 three mast barque Gorch Fock was scuttled by her crew in shallow waters off Rügen, Germany in an attempt to avoid her capture by the Soviets.MuseumShip Gorck Fock 1, Stralsund, Germany