Brockhaus-1911: Key West · Key
Meyers-1905: Key-Inseln · Key-stone State · Key [2] · Key West · Key [1]
Pagel-1901: Key, Ernst Axel Henrik
Pierer-1857: Key-West · Key [3] · Salt Key Bank · Long-Key · Key [1] · Green Turtle Key · George-Key · Halls-Key · Green-Key