Miscellaneous papers, Ychwanegu i'r clipfwrdd 68-73. Cyfres 1911-1973. Rhan oD. Vaughan Thomas Music Manuscripts and papers,
Musical works, Ychwanegu i'r clipfwrdd 66-67. Cyfres 1907-1922. Rhan oD. Vaughan Thomas Music Manuscripts and papers,
Miscellaneous letters and papers, Ychwanegu i'r clipfwrdd 61-65. Cyfres 1841-1973. Rhan oD. Vaughan Thomas Music Manuscripts and papers,
Musical works, printed, Ychwanegu i'r clipfwrdd 46-60. Cyfres [1890x1934]. Rhan oD. Vaughan Thomas Music Manuscripts and papers, Except Nos 52, 55.