As I recall, the muster rolls for Dragoon Companies B and K for December 1861, indicate that a half a dozen men deserted in Panama, taking with them their carbines and Colts. Also when Captain John W. Davidson was boarding his command at New San Pedro for the trip East, there was no ordnance officer present. This meant that, even if he wanted to, there was nobody to take possession of the Dragoon arms.
Finally, it is important to bear in mind that the Dragoons were travelling on ships that were filled with gold from the San Francisco Mint. The authorities were worried about having the ships intercepted by Rebels. They insisted that the troops carry their arms with them to protect the gold shipment.
This information is not found in the Official Records of the War. Rather, one would need to go through the Correspondence of the Department of the Pacific.
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