It's possible that she wrote some articles or speeches, but these would not be considered "written works" in the traditional sense.
To find out more about her life and political career, you can consult her biography:
* "Margaret Chase Smith: A Life in the Senate" by Edward E. Zoll, Jr.
You can also find information on her life and career at the Margaret Chase Smith Library:
* https://www.library.umaine.edu/mcss/