Davy Jones Locker

Davy Jones Locker was a phrase used in this story. So, I was wondering where this phrase came from. As it doesn't really have any direct correlation to the ocean. The first clear reference comes from Tobias Smollett, who wrote in The Adventures of Peregrine Pickle in 1751 that: “This same Davy Jones, according to the mythology of sailors, is the fiend that presides over all the evil spirits of the deep, and is often seen in various shapes, perching among the rigging on the eve of hurricanes, ship-wrecks, and other disasters to which sea-faring life is exposed, warning the devoted wretch of death and woe”. So his locker is the bottom of the sea, the ocean’s depths. I took this exerpt from the site "http://www.worldwidewords.org/qa/qa-dav1.htm"
So, now I know where this phrase may potentially came from.