European Union | European Parliament | Member of the European Parliament | Society of Jesus | Royal Society | European Commission | National Geographic Society | American Cancer Society | European Space Agency | European | European Court of Human Rights | European Court of Justice | Royal Television Society | American Physical Society | European Economic Community | West Midlands (European Parliament constituency) | American Chemical Society | International Society for Krishna Consciousness | American Society of Civil Engineers | Royal Society of Canada | European People's Party | Royal Geographical Society | American Philosophical Society | Theosophical Society | Royal Society of Edinburgh | Indo-European languages | Society of Antiquaries of London | Society of the Cincinnati | Society for the Prevention of Cruelty to Animals | Party of European Socialists |
In 1921, he became a member of the British Society for the Study of Orthodontics (BSSO) and a member of European Orthodontic Society (EOS) in 1926.