Grimsby Docks: http://www.rodcollins.com/wordpress/the-decline-of-grimsby-docks-an-illustrated-history
Fishing history: http://www.lincolnshirelife.co.uk/posts/view/grimsbys-fishing-heritage
Sail trawler Esther: http://erflyn.com/esther/grimsby.html
Grimsby Museum: http://www.nelincs.gov.uk/resident/museums-and-heritage/fishing-heritage-centre
Museum video: https://www.youtube.com/watch?v=Xbaa4yBRzEQ
