Fragmentary material. - References of documents on Irish Foreign Policy published by the Royal Irish Academy, Department of Foreign Affairs and National Archives, between 2002 and 2004 - Volumes including the texts of correspondence to and from Sean Lester - Some of the letters reproduced in these publications are not in the S. Lester's Journal and Papers, and vice-versa.
September 1930: the Irish Free State starts a three-year term as a temporary member of the Council of the League of Nations.
On 30 September 1936, the League of Nations Council decided to appoint S. Lester as Deputy Secretary-General, in replacement of Pablo de Azcarate, although his appointment as High Commissioner in Danzig had been prolonged till October, 1937. S. Lester was to take up new responsibilities in February 1938.
S. Lester's departure from Danzig caused consternation among the opponents of the Nazi regime, and satisfaction among the Nazis, who regarded S. Lester as an obstacle to the establishment of a totalitarian State in Danzig, it was mainly a victory for A. Forster, the Nazi district leader and A. Greiser, the President of the Danzig Senate.
S. Lester succeeded P. Azcarate, who resigned the post of Under Secretary-General to become Spanish Ambassador in London.
September 1936, S. Lester appointed League of Nations Under Secretary-General, a position previously held by Ascarati, of Spain. S. Lester's appointment will take effect when his successor in Danzig is announced. By the appointment S. Lester became the second highest official at Geneva and will be in charge whenever Joseph A.C. Avenol, Secretary-General, is absent.
5 October 1936: the Council considered the position of the High Commissioner in Danzig. The Council asked Poland to take up matter on their behalf, i.e. abandon all formal attempt to hold up Danzig Constitution. Poland did not act. Nazi Government liquidated opposition press, abolished opposition Parties, arrested or forced out opposition leaders.
The Council reluctantly decided to maintain pretence (F. Walters) and to appoint a new High Commissioner in February 1937.
S. Lester placed in a special envelope, marked "Secret-Private Diary" his notes and some letters-copies for a crucial period July-December 1936. This envelope was mislaid but found many years later, after the rest of his papers (perhaps in the early eighties). Its contents have now been incorporated in the general collection of S. Lester papers, chronologically.
18 February 1937, S. Lester officially took up his functions of Deputy Secretary-General, a post on which he was appointed in September 1936, and that was previously held by Ascarati of Spain. S. Lester's appointment took effect when C. Burckhardt, his successor in Danzig, was appointed. By this appointment S. Lester became the second highest official at Geneva and was in charge whenever Joseph A.C. Avenol, League of Nations Secretary-General, was absent.
The Committee of Three including Britain, France, and Portugal replaced by Sweden, was set up in July 1936 to deal with Danzig affairs.