A writer, Diggs served as the associate editor of The Advocate, Topeka, Kansas, and was the author of Little Brown Brothers and the Story of Jerry Simpson.

[4] In 1855, the family removed to New Jersey where Diggs studied with a governess, and also received education at a convent and public schools.

She then began her career in public as a journalist, publishing the Kansas Liberal with her husband from their home in Lawrence.

She was chosen by the People's Party to reply to the platform utterances of John James Ingalls, which largely contributed to his overthrow.

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.