The Steamship SS Penvearn was attacked by an U Boat U 105 commanded by Kapitänleutnant Friedrich Strackerjan, 15 miles N1/2W of the South Stack Rock, Holyhead Island, on the 1st March 1918. There were 21 casualties.
Alfred Snowdon is remembered at Stockton on Tees on S138.18b, at Yarm on Y1.07 and on our List of Ships’ crews.