Better than YouTube - British Pathe archives ...

http://www.britishpathe.com/video/captains-as-deck-hands/query/shanty

http://www.britishpathe.com/video/windjammer-shots/query/shanty

Also see

http://www.britishpathe.com/search/query/windjammer

http://www.britishpathe.com/search/query/shanty