I thought Ellan Vannin was the Manx name for the Island itself, after which the ship is named.

If you like and you're still looking for the tune, I could ask Hughie for a copy next time I see him....although come to think of it he probably didn't write it down! Tell you what, phone me up and I'll sing it to you!   Or come to the Everyman FC in Liverpool one Tuesday and ask the man himself!

Steve