Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- National Peace Council., 2 canlyniadau
- League of Nations, 1 canlyniadau
- New Commonwealth Society., 1 canlyniadau
- League of Nations Union. Welsh National Council, 1 canlyniadau
- International Peace Campaign., 1 canlyniadau
- National Free Church Council of Wales., 1 canlyniadau
- League of Nations. General Council., 1 canlyniadau
- Council of Action for Peace and Reconstruction., 1 canlyniadau