Tonau, Ychwanegu i'r clipfwrdd NLW MS 9976A. Ffeil [1814x1869] / Rhan oW. D. Roberts manuscripts A book of hymn-tunes compiled by John Rees, Tregaron. John Rees, Tregaron.
Pregethau, Ychwanegu i'r clipfwrdd NLW MSS 10000-10001B. Ffeil 1849 / Rhan oW. D. Roberts manuscripts Sermons, 1849, by John Rees, Tregaron. John Rees, Tregaron.