The Acjachemen and Mission San Juan Capistrano, The Name They Did Not Choose

Every spring, the cliff swallows return to Mission San Juan Capistrano, and tourists come to watch them. The swallows are real, the mission is beautiful, and the story told at the visitor center tends to emphasize the Franciscan architecture, the restored garden, and the birds. What the visitor center tends not to dwell on is the demographic record contained in the mission registers sitting in the archives.

The Acjachemen people had lived in what is now Orange County for approximately ten thousand years when Mission San Juan Capistrano was founded in seventeen seventy-six. The priests who ran the mission assigned the Acjachemen a new name: Juaneno, after Juan de Capistrano, a fifteenth-century Franciscan friar from a town in central Italy. The Acjachemen had their own name. The mission register has Juaneno written in every entry. The Acjachemen name appears almost nowhere in the colonial documentation.

The mission registers are among the most complete in California's mission system. They record baptisms, marriages, and deaths with administrative precision. Historians and demographers who have analyzed these records as population data rather than spiritual records have reached consistent conclusions: the mortality rates among the Acjachemen population following sustained contact with the mission system exceeded the birth rate within a generation. The causes included epidemic diseases for which the population had no prior immunity, the disruption of traditional food systems, forced congregation in mission settlements where disease transmission was accelerated, and the prohibition of traditional practices. The registers document a population in collapse.

The Acjachemen National today holds state recognition in California but remains without federal recognition. They have never formally ceded their land. The mission the tourists visit was built on it.