Society of Jesus | Royal Society | National Geographic Society | American Cancer Society | Royal Television Society | American Physical Society | American Chemical Society | International Society for Krishna Consciousness | American Society of Civil Engineers | Royal Society of Canada | Royal Geographical Society | American Philosophical Society | Theosophical Society | Royal Society of Edinburgh | Society of Antiquaries of London | Society of the Cincinnati | Society for the Prevention of Cruelty to Animals | Justice Society of America | American Mathematical Society | Royal Aeronautical Society | National Honor Society | Black Label Society | Students for a Democratic Society | society | Royal Society of Arts | secret society | Royal Dublin Society | Royal Astronomical Society | London Missionary Society | Zoological Society of London |
Over the years he was a member of a number of domestic and international organisations connected to the law, including the International Law Association from 1912–39, the Grotius Society of London from 1915–39, the American Society of International Law, other English and foreign Peace and International Law Societies, the Society of Comparative Legislation and Société de Législation Comparée of Paris and the Medico-Legal Society of London, 1915–38.