Vincent J Mahon was among the many who where killed in the attack on HMT Rohna on the 26th of November 1943.

"On November 26, 1943, during WWII, one thousand, one hundred and thirty eight men perished when a British troopship, the HMT Rohna, was attacked from the air and destroyed in the Mediterranean Sea off the coast of Algeria. Two important but virtually unknown historical events occurred at that time.

It was the first successful “hit” of a merchant vessel at sea carrying US troops by a German remote-controlled, rocket-boosted bomb, thus giving birth to the “Missile Age”, and it resulted in the greatest loss of troops (1,015) at sea in U.S. history. Combined with the loss of ship’s crew and officers, and three Red Cross workers, more lives were lost than on the USS Arizona at Pearl Harbor.

The “hit” was so devastating that the U.S. Government placed a veil of secrecy upon it. The events which followed were so shameful that the secrecy continued for decades until recently, when documents were grudgingly released under pressure of the Freedom of Information Act."

Source: The Rohna Survivors Memorial Association