The first time I visited Mystic Seaport Museum, in addition to spending time on the historic ships, I recall spending quite a while talking to the docent in the village cooperage. The production of barrels, for the storage of oil on whalers, as well as for the storage of water and other provisions, is one of the crucial but often overlooked skills and technologies that made whaling, and indeed life at sea possible. Here is a short video about the cooperage at Mystic Seaport.