I was Junior 5th Engineer on Northern Star at the time, and although I did not know David Dixon or the AB who was killed, and did not witness the accident, my memory of the tragic incident is reasonably clear, although I am not 100% sure of the dates.
I believe the accident occurred while berthing port side to at Port of Spain towards the end of Voyage 4 in late June 1963.
The victim was preparing to land a shore gangway into the entry port of the main foyer when he fell overboard and became entangled with a line suspended from above the port. My understanding was that the line somehow took a turn around the victim’s neck and he was effectively hanged before reaching the dock.
A large number of passengers looking over the rails saw the accident and the victim was well known to many of them as he was one of the Swimming Pool Attendants. A collection was made for the victim’s next of kin.
Just an outline of what happened from what I told, I don’t know what part David Dixon played, but he was probably one of the gangway party.
Hope this information is of use, I believe it to be correct, but I am working from memory and it was 53 years ago.