Though previously unidentified, a researcher has offered the following details about this photo. The sitters are all Comanche from Oklahoma. Pictured is Red Elk (seated left), Isatia (sometimes spelled Eshiti or called White Eagle, standing left), Chief Quanah Parker, Harold Parker (student and oldest son of Quanah Parker). The women pictured are Laura Parker (student and daughter of Quanah Parker), and Tonarcy (wife of Quanah Parker). The photo dates from January 1896. This photo is corroborated by the "Visiting Chiefs" article in the January 31, 1896 issue of "The Indian Helper." Also, through additional research, there are articles that appear in newspapers in various states in February 1896 about Quanah Parker, his wife, and others visiting Carlisle and Washington DC.
Harold Parker and Laura Parker with visitors Red Elk, Isatia, Quanah Parker and Tonarcy, 1896
John H. Andrews, Carlisle, PA