Correction: U-161 not involved with the sinking of SS Ario.
I happened across your website while researching the SS Ario. This is the only ww2 wreck that has not been located in our area. I saw in your reply to Carolyn Knowlton, a reference to it being sunk by gunfire by U-161, could you tell me where you got that info? When the crew was interviewed, they said that they were shelled by two subs, but the battle report of the U-158 does not mention another sub, I think it is highly unlikely that there was a second sub, but it is worth looking at. Any info or links would be greatly appreciated.
Here is a report about both U-Boatson the same day.
My apologies, I do strive for accuracy, but am now and then shown to be fallibile.