 In 1919, she led a delegation of 80 women to meet with President Woodrow Wilson to ask for the inclusion of women in the deliberations of the Paris Peace Conference.Just over a week later, when the Inter-Allied Women's Conference opened, she began serving as an editor and translator for the conference delegates.The conference lasted from 10 February to 10 April, and at its conclusion Thomson began a tour of the U.S. with Alice Masaryk.