In addition to his service in the United Kingdom, Duncan was appointed in 1926 by Prime Minister of Canada MacKenzie King in response to the Maritime Rights Movement to chair the Royal Commission on Maritime Claims which was thus nicknamed the "Duncan Commission".
International Red Cross and Red Crescent Movement | Non-Aligned Movement | International Maritime Organization | European Court of Human Rights | Human Rights Watch | Seine-Maritime | Union for a Popular Movement | National Maritime Museum | Arts and Crafts movement | European Convention on Human Rights | Oxford Movement | Indian independence movement | White movement | Equal Rights Amendment | Digital rights management | Center for Constitutional Rights | Temperance movement | Movement for Democratic Change | Japan Maritime Self-Defense Force | women's rights | Polish resistance movement in World War II | Latter Day Saint movement | Eu, Seine-Maritime | Charente-Maritime | Convention on the Rights of the Child | conservation movement | Universal Declaration of Human Rights | Resistance movement | Maritime Alps | Italian resistance movement |