40 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 Ayres a + Olivos b) |  | President Hipolito Yrigoyen |  | |
 |  | GERMAN-AUSTRIA | (Vienna) |  | Directory |  | |
 |  | BELGIUM | (Brussels) |  | King Albert I | | |
 |  | BULGARIA | (Sofia) |  | Tsar Boris III the Unifier | | |
 |  | BRAZIL | (Rio de Janeiro) |  | Delfim Moreira | | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Gustave Ador | | |
 |  | CHILI | (Santiago of Chili a + Valparaiso ls) |  | President Juan Luis Sanfuentes | | |
 |  | CUBA | (Havana) |  | President Mario Garcia Menocal |  | |
 |  | PRUSSIA | (Berlin) |  | | | |
 |  | MECKLENBURG-SCHWERIN | (Schwerin in Mecklenburg) | | | | |
 |  | HESSE | (Darmstadt) | | | | |
 |  | BADEN | (Carlsruhe) | | | | |
 |  | WURTTEMBERG | (Stuttgart) | | | | |
 |  | DENMARK | (Copenhagen) |  | King Christian X | | |
 |  | BAVARIA | (Munich) | | | | |
 |  | SAXONY | (Dresden) |  | Robert Richard Lipinski | | |
 |  | SPAIN | (Madrid) |  | King Alfonso XII | | |
 |  | FRANCE | (Paris) |  | President Raymond Poincare | | |
 |  | GREECE | (Athens a) |  | King Alexander I | | |
 |  | HAMBURG | (Hamburg) |  | Karl Hense | | |
 |  | HUNGARY | (Budapest a) |  | President Count Mihaly Karolyi de Nagykaroly | | |
 |  | ITALY | (Rome a) |  | King Victor Emmanuel III | | |
 |  | JAPAN | (Tokyo) |  | Emperor Yoshihito |  | |
 |  | LUXEMBURG | (Luxembourg a) |  | Grand Duchess Charlotte | | |
 |  | MEXICO | (Mexico City) |  | President Venustiano Carranza | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) |  | Queen Wilhelmina | | |
 |  | NORWAY | (Christiania) |  | King Haakon VII | | |
 |  | OLDENBURG-EAST FRISIA | (Oldenburg) | | | | |
 |  | PERU | (Lima) |  | President Jose Pardo y Barreda | | |
 |  | PORTUGAL | (Lisbon) |  | President Joao do Canto e Castro | | |
 |  | CHINA | (Peking) |  | President Hsu Shih-Chang | | |
 |  | RUMANIA | (Bucharest) |  | King Ferdinand I | | |
 |  | SWEDEN | (Stockholm) |  | King Gustav V | | |
 |  | SOVIET RUSSIA | (Moscow) |  | Vladimir Ilich Lenin | | |
 |  | OTTOMAN TURKEY | ((Constantinople)) |  | Sultan Mehmet VI Vahidettin | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) |  | King George V | | |
 |  | AMERICA | (Washington-District of Columbia) |  | President Woodrow Wilson | | |
 |  | URUGUAY | (Montevideo) |  | President Feliciano Viera | | |
 |  | VENEZUELA | (Caracas) |  | President Victorino Marquez Bustillos | | |
 |  | JUGO-SLAVIA | (Belgrade) |  | King Peter I. Karageorgevich | | |
