Similarly , the Mission San Carlos Borromeo in Carmel , California , is considered the mother church of California , as it historically served as the headquarters of the California mission system .
Under these circumstances it is today considered the mother church of all Hawaii .
The Mission San Carlos Borromeo in Carmel , California , is considered the mother church of California , as it historically served as the headquarters of the California mission system .
Under these circumstances it is today considered the mother church of all Hawaii .