National Eisteddfod, Liverpool, 1929, correspondence, March-Oct. 1929 [275]. Ychwanegu i'r clipfwrdd B115. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
National Eisteddfod, Machynlleth, 1937, correspondence, 1936-7 [322]. Ychwanegu i'r clipfwrdd B1/11. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Conferences. Ychwanegu i'r clipfwrdd B1/12-26. Cyfres Rhan oLeague of Nations Union and United Nations Association Records,
Whit-week conference 1924, Feb. June 1924, plus general correspondence, May-Dec. 1924 [135] (three files). Ychwanegu i'r clipfwrdd B1/13. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Whit-week conference 1925, correspondence, 1924-5 [175]. Ychwanegu i'r clipfwrdd B1/15. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Whit-week conference, Wrexham, 1929, correspondence, 1928-9 [262(2)]. Ychwanegu i'r clipfwrdd B1/19. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Annual conference, Cardiff, 1931, correspondence, Feb. July 1931 [282] (two files). Ychwanegu i'r clipfwrdd B1/21. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Annual conference, Aberystwyth, 1933, correspondence, 1932-3 [293] (two files). Ychwanegu i'r clipfwrdd B1/23. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Annual conference, Carmarthen, 1937, correspondence, March-Nov. 1937 [328]. Ychwanegu i'r clipfwrdd B1/26. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Advisory Education Committee, agendas and circulars, 1923-37 [104] (two files). Ychwanegu i'r clipfwrdd B1/29. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Advisory Education Committee minutes, 1923-37 [181] (three files). Ychwanegu i'r clipfwrdd B1/32. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Pwllheli Girls' Council School, 6 April 1925 - 23 Feb. 1934 [1059]. Ychwanegu i'r clipfwrdd B2/65. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Llandrillo Calvinistic Methodist Church, 28 March 1925 - 23 Dec. 1929 [1062]. Ychwanegu i'r clipfwrdd B2/68. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Haverfordwest - Hill House College, 30 March 1925 - 17 July 1940 [1078]. Ychwanegu i'r clipfwrdd B2/74. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Ammanford County School, 24 March 1925 - 3 April 1939 [1099]. Ychwanegu i'r clipfwrdd B2/78. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Solva, 4 Feb. 1926 - 3 Dec. 1931 [1241]. Ychwanegu i'r clipfwrdd B2/84. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Wrexham - Brynffynnon Wesleyan Church, 14 Dec. 1926 - 27 Feb. 1933 [1318]. Ychwanegu i'r clipfwrdd B2/89. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Llangollen - Rehoboth Calvinistic Methodist Church, 2 Feb. 1927 - 12 March 1936 [1327]. Ychwanegu i'r clipfwrdd B2/90. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Cemaes Council School, 4 Nov. 1927 -14 Jan. 1937 [1400]. Ychwanegu i'r clipfwrdd B2/93. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
Ferndale - English Wesleyan Church, 21 March 1928 - 10 Sept. 1936 [1469]. Ychwanegu i'r clipfwrdd B2/97. Ffeil Rhan oLeague of Nations Union and United Nations Association Records,
