Fifteen testimonial letters, 1899-1921, for Dafydd Rhys Jones ('Jones Pat'), headmaster of the Gaiman Higher Grade School, Chubut, 1906-1915, and of the Cwmystwyth, Pontrhydfendigaid and Ysbyty Ystwyth Council Schools, Cardiganshire, 1902-1906, 1917-1941.
Among the referees are Professors Edward Anwyl, 1900 (ff. 4-5), and T. Gwynn Jones, 1919 (f. 16). Also included are extracts from the annual reports for Cwmystwyth School for 1903-1905 (f. 19) and newspaper cuttings, [c. 1916]-[1953], mostly relating to Devil's Bridge and Ysbyty Ystwyth (ff. 20-21).