Fabulous, Ken. I never new about this museum. ISO 100 & no visible flash used indoors? You either have rigor mortis - or a tripod Very nice shots - each.
If you enjoy vintage or replica trains, you might enjoy the trains at http://ocmetrains.org/
in Costa Mesa. Children and adults can ride free the 3rd Sat & Sun of the month 11-3. Perhaps they'd let you back to the maintenance area w/ the fully functioning roundhouse.