Oklahoma State University
Oklahoma Historical Society: Missionary Tour in the Chickasaw Nation [Pdf]
A primary source account by a Catholic priest who visited and worked with the different Native American groups in the Indian Territory in 1885. He spent some time with the Chickasaw tribe.
New Advent
Catholic Encyclopedia: Pierre Jean De Smet
Catholic Encyclopedia provides a biography on Pierre-Jean de Smet, discussing his missionary work. Please note that ?The Catholic Encyclopedia? is a historic reference source and should be viewed in the context of resource material dated...