- CollectionCamb. Medieval History - Papers relating to the Cambridge Medieval History Series
- SeriesBox 1-2 - Letters to and from contributing historians to Cambridge Medieval History
- SubseriesBox 2 - Letters relating to historians M-W
- File75 - Letters from C. Roth
- Item1 - Autograph letter, signed, to 'Dear Sir', from L. Roth, Didsbury
- Item2 - Typewritten letter, signed, to J. R. Tanner from C. Roth, New York City
- Item3 - Typewritten letter, signed, to J. R. Tanner from C. Roth, London