I too was interested to hear of the CSRM having Porter materials in their collection. I'd been hoping to scrounge up records on c/n 1790 (0-6-2T) "Melodia B." built for the Barker & Lepine Company of LaFourche, LA, which Crown rebuilt into a gawky 2-6-2 for amusement park service, now in Santa Margarita under the care of Phil Reader. I figured Jerry Best or one of the other contributors to the CSRM library might have some stuff on it. I believed I heard of some local place in Pennsylvania also holding records from Porter, but am not sure.