 Russ Rowlett keeps an annotated version of the Doomsday List on the Lighthouse Directory.He has also compiled a Watch List of other lighthouses he feels should be on the Doomsday List.The Nova Scotia Lighthouse Preservation Society also holds a Doomsday List of Canadian endangered lighthouses, though according to Russ Rowlett it is not truly national in scope as most of the lighthouses listed are in Nova Scotia.