Lorenz's first name, "Keel", is actually spelled incorrectly. It should be "Kiel", as "Keel", in German, would be pronounced like "Kayl". However, due to the proliferation of "Keel" in canonical materials, this spelling is used. Keel is, of course, a nautical term, referring to both an integral part of the hull of a ship and how much a ship tilts while moving.
There's a city on Germany's Baltic coast called Kiel. It served as the main naval base of the Kaiserlischemarine and was the site of the Sailor's Mutiny in 1918.
It continued as a major naval base after the rise of Hitler, and almost every Kriegsmarine U-boat began it's first war patrol in Kiel, travelling from there to their permanent base. It was also the site of the Graf Zeppelin's construction.
The city is now the shipbuilding capital of Germany, and lies a mere 10km away from the Laboe Naval Memorial.
Given the strong references to navies in almost every character's name, I doubt that the proper spelling of his name is a coincidence.