Diver team finds the SS Cornwallis off Maine after 80 years

A technical dive team located the SS Cornwallis in about 400 feet of water off the Maine coast on July 11, 2026, ending an 80-year search for the World War II ship sunk by a German submarine. The discovery reconnects a forgotten wartime tragedy to the larger story of U-1230, which also landed Nazi saboteurs in Maine days before the sinking.

Why it matters: - The SS Cornwallis was one of the Maine coast’s lost World War II wrecks, and its discovery restores a specific location to a long-dormant wartime story. - The wreck also reconnects the sinking to the wider U-1230 spy operation, one of the war’s stranger episodes on the U.S. home front. - The find offers families and communities tied to the ship a new focus for remembrance.

What happened: - The Nomad Exploration Team found the SS Cornwallis on July 11, 2026, after years of expeditions along the northern Maine coast. - The wreck sits in close to 400 feet of water. - Side scan sonar first detected the wreck, and later dives confirmed the ship’s identity. - The discovery team included Danny Allan, Ross Baxter, Mark Bowers, Josh Cummings, Don Ferrara, Bob Foster, Nate Garrett, Jeff Goudreau and Ryan King.

The details: - The Cornwallis was a 5,458-ton steam merchant ship built in Vancouver, British Columbia. - The ship measured 400 feet long. - The vessel launched in 1921 as the Canadian Transporter and later took the name Cornwallis after transferring to Canadian National Steamships. - The crew was almost entirely Canadian, including 19 men from Nova Scotia. - In November 1944, the Cornwallis left Barbados carrying bags of sugar and barrels of molasses for St. John, New Brunswick. - Forty-eight people were aboard, including seven armed guards. - Shortly after 6 a.m. on Dec. 3, 1944, German submarine U-1230, commanded by Hans Hilbig, fired a torpedo that struck near the forward cargo hold. - The blast threw the hatch cover into the air, crew members smelled cordite and the ship sank by the bow in less than 10 minutes. - Only five of the 48 people aboard survived. - Survivors reached life rafts, were spotted by aircraft, picked up by fishing boats and transferred to a U.S. Navy rescue vessel that landed them in Rockland, Maine. - U-1230 had landed two German agents, Erich Gimpel and William Colepaugh, near Hancock, Maine, on Nov. 29, 1944, four days before the Cornwallis was sunk. - The agents’ mission, Operation Magpie, was to gather intelligence in the United States and possibly carry out sabotage. - American authorities initially did not know the landing had happened. - Investigators later found two Hancock residents who saw strangers in the area the night the spies arrived. - Colepaugh later confessed to a friend, the FBI arrested Gimpel, and a military court convicted both men and sentenced them to death before the sentences were commuted to life imprisonment. - U-1230 survived the war and was scuttled off Great Britain in December 1945. - The Cornwallis remained missing until the Nomad team’s 2026 discovery. - The team’s company announcement says its mission is to find lost vessels, document them and preserve the stories of the people aboard.

Between the lines: - The Cornwallis was not just another wreck. Its loss is tied to a submarine mission that blended sabotage, espionage and shipping warfare along the Maine coast. - Finding the ship does not change the wartime record, but it gives historians, families and maritime researchers a precise site to study. - The wreck’s depth, cold water, strong currents and remote location help explain why the ship stayed hidden for so long.

What's next: - The Nomad Exploration Team is likely to continue documenting the wreck and using it to revisit the broader history of U-1230 and the Cornwallis crew. - The discovery may also draw renewed attention to other World War II wrecks and wartime incidents off New England. - The Cornwallis now joins the team’s list of notable finds, including the William H. Machen and the USS Eagle 56.