"Dee" <[email protected]> wrote in message news:[email protected] > Anyone any idea how I go about finding out why the cargo boat MV Cathrine > sunk in 1941, with my grandfather on board? I'd like to know the story. > Watch your spelling: It is variously known as Cathrine, Catharine and Catherine: http://www.warsailors.com/freefleet/survivors4.html And further search finds that it was sunk by U-43: http://www.ubootwaffe.net/ops/boat.cgi?boat=43 11.5.41 - 1.7.41 Eighth Sailing - active patrol On the 11th May 1941, U-43 left Lorient under the command of Wolfgang Lüth and returned over seven weeks later to Lorient on 1st Jul 1941. Wolfgang Lüth hit three ships on this patrol, two of these ships were in convoy: One was from convoy OB-328 and one was from convoy SL-76. On 15th May 1941 he sank the French 488 ton Notre Dame du Châtelet. On 6th Jun 1941 he sank the Dutch 4,802 ton Yselhaven, sailing with convoy OB-328. On 17th Jun 1941 he sank the British 2,727 ton Cathrine, a member of convoy SL-76 U-47 sunk another Cathrine a year earlier: "On 24th Jun 1940 he sank the Panamanian 1,885 ton Cathrine."