The tune is catalogued in Folk Songs of North America - Lomax. It is an old sailing song and will probably be found in one of the Songs of the Sea sections of the book. I don't remember the name. Anyone with the book on their shelf can look it up for you. I vaguely remember singing it a few times. I think the lyric has something to do with ghosts? Maybe some ghost sunk a ship? And I think it is the first song in the Songs of the Sea section. But the book may have two seafaring sections separated according to historical period. If someone wants to look it up, those are your best leads.