The US Naval Academy at Annapolis MD has an extensive collection of Spanish bronze cannon on display around the Yard. Many of the cannon are marked, either by brass tags fastened to the barrels, or by metal stampings on the muzzle face, "TAKEN BY THE NAVY IN CALIFORNIA 1847." I checked with the USNA museum registrar to determine whether any more precise provenance is available, and it is not.
Recently I began exchanging information on Spanish cannons in early California with Michael Hardwick, who is doing research on the armament of the Spanish presidios. One quote in a paper he authored rang a bell.
"1842, October 20, Thomas Catesby Jones account:
At twelve our forces took possession of the fort at Monterey. The Mexicans abandoned the works as we marched up the ravine… On reaching the summit of the hill, about twenty yards from the fort, we found nine long brass guns, concealed by green branches of trees, put in order of threes, above each other, commanding the whole ravine, these guns loaded with copper grapeshot and escopette (sic.) balls, all primed, and with the linstocks lighted and at hand, burning within a few inches. (In taking possession of the fort, we immediately unloaded these guns, and removed them to the breastworks again.) Every gun had a name –Jesus, San Pedro, San Pablo and other saints." (September 16, 2009 Arms and Armament Presidios of California Copyright © Michael R. Hardwick)
One of the Spanish cannons in the Yard is named "Jesus." It was cast in Lima in 1678 and bears markings of the Spanish Viceroy of Peru, in addition to the usual maker's marks, Spanish royal cypher, and the gun's name. Other quotes in Mr. Hardwick's paper mentioned bronze cannons at Monterey having origins in South America and dates of manufacture during the 17th C. So many bronze cannons were manufactured by Spain, both in Spain and in her colonies, that it is within the realm of possibility that more than one cannon named "Jesus" was cast. However, in my opinion a strong case can be made that the cannon now at USNA, named "Jesus" was once part of the armament of the presidio of Monterey.
I haven't yet attempted to match the other USNA cannons to specific locations in California, but if doing so in this case was as straightforward as it seems, I expect more matches will be made before long.
The slideshow contains about a dozen photos of "Jesus" which I took during a visit there in 2008.
http://s17.photobucket.com/albums/b62/cannonmn/miscforumsetc/forums46/?action=view¤t=52c5ce54.pbw