Russ,
I well remember May 17, 1991. I was hanging around the GGRM guys at the same time, and went up to Railfair to partake of the festivities. When 3472 went up to Sacramento, I got a great shot of 2472, the SP Passenger GP and it's short train from both Oakland and from the bayside of the main up somewhere up around Pinole, but since this shot was on 4x5 Ektachrome I can't scan them to post them.
Later on, on the morning of the 17th, I found myself around Martinez awaiting the train, with my trusty Nikon camera in hand...
I think you you may recognize the location...
Bill Daniels
Santa Rosa, California