36 Members (excluding the associate or suspended members but including the countries represented on their behalf) [The rulers are not necessarily the representatives in the organisation. ] :
| | ARGENTINE | (Buenos Aires a + Olivos r) | | President Edelmiro Julian Farrell | | |
| | AUSTRIA | (Vienna) | | President Karl Renner | | |
| | BELGIUM | (Brussels) | | Regent Prince Charles | | |
| | BULGARIA | (Sofia) | | Kimon Georgiev | | |
| | BRAZIL | (Rio de Janeiro) | | President Jose Linhares | | |
| | CANADA | (Ottawa) | | King George VI | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Karl Kobelt | | |
| | CHILE | (Santiago of Chile a + Valparaiso l + Vina del Mar s) | | President Juan Antonio Rios | | |
| | CZECHOSLOVAKIA | (Prague a) | | President Edvard Benes | | |
| | WEST GERMANY | (Frankfort on the Main a) | | Dwight David Eisenhower | | |
| | DENMARK | (Copenhagen) | | King Christian X | | |
| | ECUADOR | (San Francisco of Quito) | | President Jose Maria Velasco Ibarra | | |
| | SPAIN | (Madrid) | | Caudillo Francisco Franco | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Carl Gustaf Mannerheim | | |
| | FRANCE | (Paris) | | Felix Gouin | | |
| | HUNGARY | (Budapest a) | | Matyas Rakosi | | |
| | EIRE | (Dublin) | | President Sean Thomas O´Kelly | | |
| | ITALY | (Rome a) | | King Victor Emmanuel III | | |
| | JAPAN | (Tokyo) | | Emperor Hirohito | | |
| | MEXICO | (Mexico City) | | President Manuel Avila Camacho | | |
| | NICARAGUA | (Managua) | | President Anastasio Somoza Garcia | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | Queen Wilhelmina | | |
| | NORWAY | (Oslo) | | King Haakon VII | | |
| | PERU | (Lima) | | President Jose Luis Bustamante y Rivero | | |
| | POLAND | (Warsaw a) | | Wladyslaw Gomulka | | |
| | PORTUGAL | (Lisbon) | | President Oscar Carmona | | |
| | RUMANIA | (Bucharest) | | King Michael I | | |
| | SWEDEN | (Stockholm) | | King Gustav V | | |
| | SOVIET UNION | (Moscow a + Sochi s) | | Joseph Stalin | | |
| | EL SALVADOR | (San Salvador) | | President Salvador Castaneda Castro | | |
| | SIAM | (Bangkok) | | King Rama VIII Ananda Mahidol | | |
| | TURKEY | (Ankara a) | | President Ismet Inonu | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | King George VI | | |
| | AMERICA | (Washington-District of Columbia) | | President Harry Truman | | |
| | URUGUAY | (Montevideo) | | President Juan Jose de Amezaga | | |
| | VENEZUELA | (Caracas) | | Romulo Betancourt | | |