37 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 |  | |
 |  | AUSTRIA | (Vienna) |  | President Wilhelm Miklas |  | |
 |  | BELGIUM | (Brussels) |  | King Albert I | | |
 |  | BULGARIA | (Sofia) |  | Tsar Boris III the Unifier | | |
 |  | BRAZIL | (Rio de Janeiro) |  | President Washington Luiz | | |
 |  | CANADA | (Ottawa) |  | King George V |  | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Robert Haab | | |
 |  | CHILE | (Santiago of Chile a + Valparaiso l + Vina del Mar s) |  | President Carlos Ibanez del Campo | | |
 |  | CZECHOSLOVAKIA | (Prague a + Lany s) |  | President Tomas Garrigue Masaryk | | |
 |  | GERMANY | (Berlin a) |  | Reichpresident Paul von Hindenburg | | |
 |  | DENMARK | (Copenhagen) |  | King Christian X | | |
 |  | ECUADOR | (San Francisco of Quito) |  | President Isidro Ayora | | |
 |  | SPAIN | (Madrid) |  | King Alfonso XII | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Lauri Kristian Relander | | |
 |  | FRANCE | (Paris) |  | Frederic Francois-Marsal | | |
 |  | HUNGARY | (Budapest a) |  | Regent Miklos Horthy de Nagybanya | | |
 |  | IRELAND | (Dublin) |  | James McNeill | | |
 |  | ITALY | (Rome a) |  | King Victor Emmanuel III | | |
 |  | JAPAN | (Tokyo) |  | Emperor Hirohito |  | |
 |  | MEXICO | (Mexico City) |  | President Emilio Portes Gil | | |
 |  | NICARAGUA | (Managua) |  | President Jose Maria Moncada | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) |  | Queen Wilhelmina | | |
 |  | NORWAY | (Oslo) |  | King Haakon VII | | |
 |  | PERU | (Lima) |  | President Augusto Leguia | | |
 |  | POLAND | (Warsaw a) |  | Jozef Pilsudski | | |
 |  | PORTUGAL | (Lisbon) |  | President Oscar Carmona | | |
 |  | RUMANIA | (Bucharest) |  | King Michael I | | |
 |  | SWEDEN | (Stockholm) |  | King Gustav V | | |
 |  | SOVIET UNION | (Moscow) |  | Joseph Stalin | | |
 |  | EL SALVADOR | (San Salvador) |  | President Don Pio Romero Bosque | | |
 |  | SIAM | (Bangkok) |  | King Rama VII Prajadhipok | | |
 |  | TURKEY | (Angora a) |  | President Mustafa Kemal Pasha | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | King George V | | |
 |  | AMERICA | (Washington-District of Columbia) |  | President Herbert Hoover | | |
 |  | URUGUAY | (Montevideo) |  | President Juan Campisteguy | | |
 |  | VENEZUELA | (Caracas) |  | President Juan Bautista Perez | | |
 |  | YUGOSLAVIA | (Belgrade) |  | King Alexander I. the Unifier Karageorgevich | | |
