From July, 1812 until the end of 1815 Señan held the office of Father-President of the California mission chain. Upon Father Payeras' retirement in 1820 he was reappointed and continued in office until he died.
From July 1812 to December 1815, Señan acted as the Father-President of the California mission chain. After Father Payeras retired in 1820, he was reappointed and continued in office until his death.