- The Naples Riviera
- The Last Stuart Queen: Louise, Countess Of Albany: Her Life & Letters
- The Medici Popes: (leo X And Clement Vii.)... - Primary Source Edition
- The Welsh Book-plates in the Collection of Sir Evan Davies Jones, Bart., M. P. of Pentower, Fishguard; a Catalogue, With Biographical and Decriptive Notes
- The Last of the Royal Stuarts: Henry Stuart, Cardinal Duke of York