- 1-2.
- Ffeil
- 1925-1932.
Rhan oR. F. Treharne Papers,
Manuscript draft of RFT's Ph.D. thesis, 'The Development of the Baronial Plan of Reform' (Manchester, 1925), together with draft and proofs of the published text, The Baronial Plan of Reform, 1258-1263 (Manchester, 1932).