Here are some of the Australian Merchant Navy ranks I found listed. I am keen to know what the hell some of these folks actually DID. Donkeyman Greaser? Come on!
As some ranks are patently made up to embarrass those who were saddled with them, I thought I'd join in. I have added one that I made up myself. Please email me if you think you know which one.
As I would no longer qualify as a Youngman I think I would probably settle for being a Scullion. I believe that involves polishing the figurehead's nose.