48 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. ] :
| | ANDORRA | (Andorra the Old a + (Seo de Urgel) ry) | | Jaume Viladrich i Gaspa | | |
| | ARGENTINE | (Buenos Ayres a + Olivos b) | | President Hipolito Yrigoyen | | |
| | BOLIVIA | (Sucre cj + La Paz eir) | | President Jose Gutierrez | | |
| | CHILI | (Santiago of Chili a + Valparaiso ls) | | President Juan Luis Sanfuentes | | |
| | COSTA RICA | (San Jose) | | Francisco Aguilar Barquero | | |
| | CZECHOSLOVAKIA | (Prague a) | | President Tomas Garrigue Masaryk | | |
| | SANTO DOMINGO | (Santo Domingo) | | President Woodrow Wilson | | |
| | SPAIN | (Madrid) | | King Alfonso XII | | |
| | ALSACE-LORRAINE | (Strasbourg) | | | | |
| | HAYTI | (Port Au Prince) | | President Philippe Sudre Dartiguenave | | |
| | ITALY | (Rome a) | | King Victor Emmanuel III | | |
| | LIECHTENSTEIN | (Vaduz) | | Prince Johann II the Good | | |
| | LITHUANIA | (Kovno) | | President Antanas Smetona | | |
| | LUXEMBURG | (Luxembourg a) | | Grand Duchess Charlotte | | |
| | MONACO | (Monaco q) | | Prince Albert I | | |
| | ISLAND OF MALTA AND DEPENDENCIES | (Valletta a + Casal Attard r + Siggiewi s) | | | | |
| | SAINT JOHN OF JERUSALEM | (Palace of Malta x + Via Condotti b) | | Grandmaster Count Galeas von Thun and Hohenstein | | |
| | PERU | (Lima) | | President Augusto Leguia | | |
| | PHILIPPINE ISLANDS | (Manila a + Baguio City s) | | | | |
| | POLAND | (Warsaw a) | | Jozef Pilsudski | | |
| | PARAGUAY | (Assumption) | | Jose Pedro Montero | | |
| | QUEBEC | (Quebec City) | | | | |
| | EL SALVADOR | (San Salvador) | | President Jorge Melendez | | |
| | HOLY SEE | (Vatican Palace) | | Pope Benedictus XV | | |
| | TEUTONIC ORDER | (Vienna + Basle) | | Grandmaster Archduke Eugen of Austria-Teschen | | |
| | ARGOVIA | (Aarau) | | | | |
| | APPENZELL-INNER RHODES | (Appenzell) | | | | |
| | APPENZELL-OUTER RHODES | (Herisau + Trogen) | | | | |
| | BERNE | (Berne) | | | | |
| | BASLE-COUNTRY | (Liestal) | | | | |
| | BASLE-CITY | (Basle) | | | | |
| | FRIBOURG | (Fribourg) | | | | |
| | GLARUS | (Glarus) | | | | |
| | GRISONS | (Chur) | | | | |
| | LUCERNE | (Lucerne) | | | | |
| | UNTERWALD-NIDWALD | (Stans) | | | | |
| | UNTERWALD-OBWALD | (Sarnen) | | | | |
| | SAINT GALL | (Saint Gall) | | | | |
| | SHAFFHOUSE | (Shaffhouse) | | | | |
| | SOLOTHURN | (Solothurn) | | | | |
| | SCHWYZ | (Schwyz) | | | | |
| | THURGOVIA | (Frauenfeld) | | | | |
| | TICINO | (Bellenz) | | | | |
| | URI | (Altdorf) | | | | |
| | VAUD | (Lausanne) | | | | |
| | VALAIS | (Sitten) | | | | |
| | ZOUG | (Zoug) | | | | |
| | ZURICH | (Zurich) | | | | |