She became active in suffrage work, as a member of the Woman's Political Union of New York City;[2] she worked on publicity and outreach projects for the suffrage organization in the 1910s, including parades and outdoor speeches.

[2][6] After suffrage was won, Robertson Jones was active in the American Birth Control League.

[7][8] She served on the league's board of directors, and was acting president while Margaret Sanger attended the 1926 World Population Conference in Geneva.

[1] She spoke to community organizations, participated in public debates and national conferences,[9][10] and lobbied in the New York legislature.

[13] Robertson Jones supported eugenic policies, including "helping the right sorts of persons to have more children"[14] and sterilization to prevent "defective lineage".