That's a nice find.
The ship in the first story,
British Influence, was sunk on September the 14th, 1939, near Cape Clear by
U-29. So the sub in the picture has to be the type VIIA U-29. The survivors were picked up by the Ida Bakke, which rescued more survivors the very next day, when U-53 attacked the British motor tanker
Cheyenne.
I couldn't find much about the second story. I think the U-boat in question is
U-124. It was sunk near Opporto on April the 2nd, 1943, by two British warships, but I couldn't find any mention of Norwegian freighter Jenny or its Captain.