Question: For how many years did Alice Brown Davis serve as Principal Chief of the Seminole Tribe of Oklahoma under President Warren G. Harding?
Sentence (from "Warren G. Harding"): Warren Gamaliel Harding (November 2, 1865 – August 2, 1923) was the 29th President of the United States, serving from March 4, 1921, until his death in 1923.
Relevant evidence: Yes