=== History ===
The Tejon or Sebastian Agency was established in 1855, although there had been temporary agents on the Tejon Reservation as early as 1853. It operated until 1860, when the Tejon and Tule River Indians were assigned to the Southern District. By 1864, the Tejon Reservation had been abandoned.<ref>Hill, Edward E. ''The Office of Indian Affairs, 1824-1880: Historical Sketches''. New York, New York: Clearwater Publishing Company, Inc., 1974, pp. 19-27.</ref>
'''Agent and Appointment Date ''' ====
Alonzo Riddle (subagent) September 3, 1855, James R. Vineyard March 3, 1855 arrived at agency January January 28, 1856 <ref>The Office of Indian Affairs, 1824-1880: Historical Sketches. By Edward E. Hill. Clearwater Publishing Co., New York, NY ©1974. FHL Book 970.1 H551o </ref>
=== Records ===
Some historical records of this agency, including correspondence, etc., are part of the records of the [[California Superintendency of Indian Affairs|California Superintendency]] records.