"A Century of Dishonor" is a book written by Helen Hunt Jackson, published in 1881. It documented the injustices and mistreatment inflicted upon Native Americans by the U.S. government. This book was a pivotal piece of writing in bringing awareness to the plight of Native Americans and helped spark reform efforts.
It's possible you are thinking of Helen Hunt the actress, who is known for her roles in movies like "As Good as It Gets" and "Twister."
If you are interested in learning more about "A Century of Dishonor," I recommend checking out online resources or visiting your local library.