There had been an eleven-year gap before the August 1949 Celtic Congress at Bangor, Wales where delegates included Sir Ifor Williams and Conor Maguire, Chief Justice of Ireland.
United States Congress | 66th United States Congress | 74th United States Congress | 18th United States Congress | 73rd United States Congress | 54th United States Congress | 61st United States Congress | 64th United States Congress | 65th United States Congress | 53rd United States Congress | 52nd United States Congress | 55th United States Congress | 68th United States Congress | 56th United States Congress | 62nd United States Congress | Library of Congress | 72nd United States Congress | 47th United States Congress | 60th United States Congress | 63rd United States Congress | 51st United States Congress | 48th United States Congress | 71st United States Congress | 76th United States Congress | 67th United States Congress | 57th United States Congress | 46th United States Congress | 50th United States Congress | 19th United States Congress | Congress |
He was President of the National Union of Welsh Societies, 1916–26, President of the Celtic Congress, 1918–27 and President of the Peace Society, 1924–27.