SP cars

Ijust found a copy of The Slim Princess a 35 page history of the Owens Valley Line. The roster is from 1956. I was able to work out the locations of all the passenger cars except two; where are these cars? SP 25 ex SP467 a Coach/Caboose that was in William Harrahs collection in the 1950s. and SP 3 ex N&C Unk a Bagg/ Mail/Exp also went to Harrahs. Most of his cars are now at the Nevada State RR Museum but not these two, according to their ng roster Can you help me find them? Before the Harrah collection they were in Arcadia, CA with the W.Parker Lyon collection/museum. What was that?
Ted Miles BTY Sure am glad C&TS is running this summer; I hope they have a good season!