33 AB MS 23402E, fo. 13. Programme of a concert held in St James's Hall, 28 February 1863. 34 AB MS 23391E, fo. 40. Letter from George Grove, Director of the Royal College of Music, 21 March 1883. 35 D. E. Evans, 'YCerddor Newydd', Y Cerddor, 8, no. 90 (1896), 57. 36 AB MS 23391E, fos. 208-9. Letter from John Thomas accepting the appointment, 11 April 1872. 37 Ibid., fo. 97. Letter from W. Cuisins, 20 April 1885. 38 AB MS 23402E, fos. 43-7. 39 AB MS 23389E, fo. 122. Letter from John Thomas dated January 1874. 40 AB MS 23402E, fo. 17. 41 Ibid., fo. 40. 42 Ibid., fos. 52+4 and 59. The four programmes are dated 16 July 1892, 13 July 1895, 11 July 1896, and 8 July 1899.