The two Alco MRS-1's from the Concord Naval Weapons Station were the USN 65-00612 and USN 65-00614. They were both moved by the SP from Port Chicago to Cannon on their own wheels.

The 612 became the main motive power on the Wildflower Express trains. Good service on six-axles on the light rail of the SN.

614 was made to run, eventually. It had the history behind it, as it had been the locomotive that had run over protestor Brian Wilson outside the Main Gate at the CNWS.

612 and 614 left RVJ as part of the swap with PLA. Both went to Sacramento and the CSRM. En route, the 614 suffered a wheel vearing failure. It was ultimately scrapped in Sacramento, with the cab and steam generator remaining in the collection stored in the former SP unit shop.

612 eventually went to the Railtown 1897 park at Jamestown. I am not aware of details on how the state got the 613. 612 was repainted black and lettered 612 for a tv commerical. My understanding is that it is stored out of service.