After O'Sullivan 's death , Arthur J. Hutchinson ( another pastor with a love of California history ) assumed leadership of the Mission , and played a central role in raising needed funds to continue the Mission 's preservation work . Pastor Hutchinson made key archeological discoveries on the Mission grounds during his tenure ( he died on July 27 , 1951 ) , after which time his work was continued by the next two pastors , Monsignors Vincent Lloyd-Russell and Paul M. Martin . In 1937 , representatives of the U.S. National Park Service 's Historic American Buildings Survey , as a part of the Historic Sites Act of 1935 , surveyed and photographed the grounds and structures extensively . Their efforts laid the groundwork for future excavation and reconstruction of the west wing industrial complex . Monsignor Martin began a comprehensive preservation effort following the 1987 Whittier Narrows earthquake
1987 Whittier Narrows earthquake
1987 Whittier Narrows earthquake
Mission San Juan Capistrano