To walk from San Gabriel Mission, founded in 1771, to that of San Buenaventura, founded in 1782, in one day was too much even for a Franciscan friar.  So, to help complete the chain of missions, an exploring party set out in early August 1795 to find a site midway. The records show that the Indian name for the site chosen by the Padres, to be San Fernando Mission, was "Achois Comihavit" - the village of the Achois Comihavit Indian Tribe.  It is the only name of an Indian tribe or village recorded prior to the establishment of the mission in 1797.

After the settlement of the mission, the Achois Comihavit Indians lost their identify, becoming San Fernando Mission Indians and the Valley of the Oaks no longer bore that name - it too having been given the name of the mission - thus becoming the San Fernando Valley.

On April 18, 1998, National gave approval for the merger of Achois Comihavit Chapter with San Fernando Valley Chapter.
 

CHAPTER ONE HUNDRED THIRTY-TWO
Achois Comihavit, North Hollywood, California