Werke:
- Chapters in the administrative history of mediaeval England : the Wardrobe, the Chamber and the Small Seals, 2
- Chapters in the administrative history of mediaeval England : the Wardrobe, the Chamber and the Small Seals, 1
- Chapters in the administrative history of mediaeval England : the Wardrobe, the Chamber and the Small Seals, 4 = A,49
- Chapters in the administrative history of mediaeval England : the Wardrobe, the Chamber and the Small Seals, 3 = A,48