On September 21, 1873, after finishing school and moving to Kansas she married Alvin S. Diggs, a postal clerk of
Lawrence, Kansas. She then began her career in public as a journalist, publishing the
Kansas Liberal with her husband from their home in Lawrence. She entered the field to fight for political and personal independence and equality. Diggs also lectured before literary, reformatory and religious assemblages. She lectured on sociology. When the
Farmers' Alliance movement among the western farmers began, she entered the field and soon found herself at the front among those who were engineering that industrial movement. During the political campaigns in
Kansas and neighboring states, she made many speeches. She was chosen by the
People's Party to reply to the platform utterances of
John James Ingalls, which largely contributed to his overthrow. She was elected national secretary of the
National Citizens' Industrial Alliance, at the annual meeting of that organization in
St. Louis,
Missouri, February 22, 1892. In 1881, she addressed the annual convention of the
Free Religious Association, in
Boston,
Massachusetts, on "Liberalism in the West." For years, she was a member of the
Woman's Christian Temperance Union (WCTU). Much of her journalistic work was done on the
Advocate, the organ of the Citizens' Alliance, on which journal she served as the leading editorial writer. She spent much time in
Washington, D.C., after the upheaval caused by the Alliance, and did notable work in correspondence for the western newspapers. Diggs served as president of multiple organizations including Woman's Alliance of the District of Columbia, the Kansas Woman's Free Silver League (1897), the Kansas Equal Suffrage Association (1899), and the Kansas Woman's Press Association. She was a delegate to the
International Cooperative Congress, in
Manchester. England, 1903, and the
Peace congress,
Rouen, France, 1904. ==Personal life==