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San Xavier Conservation Summary
 

General View
Funding for San Xavier’s construction was depleted just before the east tower was finished. Today, the east tower and a few of the interior paintings remain unfinished, though the east tower’s exposed adobe brick has been plastered over since the beginning of the 20th century. (UA Special Collections Library)
Overview
The church that stands today was begun sometime around 1783, led by the Franciscan Juan Bautista de Velderrain. Though not fully completed, construction stalled around 1797 when funds became scarce, leaving some portions of the interior artwork and the east tower unfinished. After a period of abandonment following the Mexican War of Independence, the Mission has survived a major earthquake and lightning strikes. A series of building and “restoration” campaigns have modified the compound over the intervening centuries, but the Mission church itself, along with its exquisite interior artwork have remained largely intact and well preserved.

interior
The altar in 1928, prior to restoration.(Library of Congress)
Secularization
Following decades of relative stability at San Xavier, Mexico gained independence from Spain in 1821, drastically cutting back and eventually eliminating financial and military support at the Mission. Instability in the region due to slim resources and regular Apache raiding caused the Franciscans to leave San Xavier in 1837.
During the ensuing decades, Tohono O’odham residents continued to protect the church, despite its status as “abandoned.” Numerous accounts, many from 49ers passing through on the way to California, describe tracking down Tohono O’odham villagers, who held the keys to the church, in order to see inside. Though the building was in a deteriorated state by the time the Catholic Church resumed a presence there, many of the statues and religious artifacts were kept safe by O’odham villagers and returned when the church resumed its function.
Reoccupation of the Mission
The Gadsden Purchase of 1853 placed the Mission on U.S. soil and also split the traditional lands of the Tohono O’odham between the United States and Mexico. From 1858 to 1866 San Xavier was overseen by the Diocese of Santa Fe. Visits by priests were infrequent, but the church was identified as worthy of repair and restoration to be used again for services.
In 1866, Jean Baptiste Salpointe was stationed in Tucson and more regular visits resumed at San Xavier. In 1873 nuns of the religious order of St. Joseph of Carondelet took up residence at the Mission in the Convento wing, to start a school.
In 1874, the first “Papago Indian Reservation” was created (Papago was the name the Spanish used for the Tohono O’odham).

detail
During his renovation of the Mission, Bishop Granjon left one of the original finials in place, for historic record. (Bernard Fontana Personal Archive)

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outside view
View of San Xavier from the south east after Bishop Granjon's restoration was completed in 1910. (UA Special Collections Library)
Granjon Campaign
Bishop Henry Granjon led the first extensive repair and renovation campaign at San Xavier del Bac in the early 20th century, setting out to “restore the former glory” of the church. Due to the Mission’s deteriorated state, the work stretched on years longer than anticipated with Granjon supplying funding from his personal account as the costs continued to grow. The ambitious campaign, begun around 1906, included completely replastering the exterior, including the East Tower which, until then, had been left as exposed  brick. The exterior walls around the cemetery and Mortuary Chapel were rebuilt, and a new front wall, an addition to the Convento wing, and an auto court around back, were all part of Granjon’s alterations. Adding a personal touch, the original finials were replaced with new ones with a slimmer profile, and the indistinct figures abutting the pedestals for the finials on the parapets were enriched with cast lion’s heads.

front facade
San Xavier after the earthquake of 1887 and prior to the commencement of Bishop Granjon's restoration in 1906. (UA Special Collections Library)
Herreras Campaign
Beginning in 1939, when a lightning bolt struck the lantern of the West Tower, architect Eleazar Herreras began work at San Xavier that would include its second largest renovation and “restoration” campaign to date. Working closely with Fr. Celestine Chinn through the late 1950’s, Herreras’s campaign included a complete “restoration” of the ornamental façade portal that surrounds the Mission’s front door and a total re-working of the façade of the Convento. A product of its time, the renovation included re-plastering the church and façade with cement-based plaster. The work was thoughtfully documented in a report with accompanying annotated photographs recording specific plaster recipes and details about the guiding philosophy behind the team’s approach. 
The Mission was designated a National Landmark in 1963.
[Photo from Herreras Campaign]

scrap book
A page from a photo album documenting the 1950's restoration campaign showing the south facade, east tower, and facade panel. Included is a recipe for the "Cactus Juice Formula" used in the restoration.(Bernard Fontana Personal Archive)
Patronato-Era
The nonsectarian nonprofit group Patronato San Xavier was formed in 1978 in response to the poor condition resulting from years of accumulated dust, soot, and water damage. To date, the Patronato has supported the extensive conservation of the interior and exterior of the Mission including routine cleaning and stabilization of the interior artwork, statuary, and wooden elements, and the complete removal of incompatible cement-based finishes from the exterior in favor of traditional, lime-based stucco. The group continues to support ongoing conservation work at the Mission, including routine maintenance and care.

funders