Thank ShaunJ. But 1863 ? I have just checked again on the photograph of his tombstone and it is definitely 1868. Maybe it was after 5yrs they decided to accept he was never coming back and had drowned. It certainly appears to be him in the entry you give. Or maybe communication wasn't that swift and it took that time for them to be notified ?
How did you find that information ? And is it possible there is a report of the actual sinking of the ship and details of her voyage ?
The Roots.chat folks must have so much detail, literally at their fingertips, on so many websites, for all the information you so speedily find !