*   the term “end” has been used to indicate that the guide concerned remained in production after 1950.  In many cases, it continued to be published in the revised red-and-yellow dust jacket cover format until the late 1970s.

† the Ward Lock spelling of some locations may vary from contemporary common usage. We have used the spelling from the red guide title. For example:

Bettws-y-Coed vs Betwys-y-Coed or Bettwys-y-Coed

Carnarvon vs Caernarvon

Lisadoonvana Spas vs Lisdoonvana Spas or Lisdoonvarna Spas