Arthur Bonnicastle

Arthur Bonnicastle
8th Principal chief of the Osage Nation
In office
1920–1922
Succeeded byNe-kah-wah-she-tun-kah
Osage Nation tribal councilor
In office
1922–1923
In office
1908–1910
Personal details
Born(1877-02-20)February 20, 1877
Osage Nation, Indian Territory
DiedMay 30, 1923(1923-05-30) (aged 46)
CitizenshipOsage Nation
EducationCarlisle Indian School
Military service
AllegianceUnited States
Branch/serviceUnited States Army
Years of service1900–1903
Unit9th Cavalry Regiment
Conflict

Arthur Bonnicastle (February 20, 1877 – May 30, 1923) was an Osage politician who served as the 8th elected principal chief of the Osage Nation from 1920 to 1922. Born in the Osage Nation, Indian Territory, Bonnicastle attended the Carlisle Indian School before enlisting in the United States Army in 1900. He served in the 9th Cavalry Regiment during the Boxer Rebellion and was discharged in 1903. After returning home, he entered tribal politics and served on the Osage Nation tribal council from 1908 to 1910 and 1922 until his death in 1923.