P45 - $100 - I also got STATES
P46 - Cash 4 - I like HALF THE MORNING GONE
P24 Whodunnit - I think PEARL - The train arrives at 10.50 but she said she got off it at 11.05. If she walked from the train it takes 15 minutes so she wouldn't have been there until 11.20 but she was there at 11.10 when Seamus arrived. She must have caught an earlier train or she would have seen Cordelia. So thinking she did the murder and then went back outside to be seen arriving by Seamus. In any case she is lying about the time so must be guilty. lol
rechecked and yes it's STATES. I also agree, Half the morning gone sounds more plausible.
I specifically concentrated on the times everyone said, there may have been another train 15 minutes later. But seamus did say he almost collected pearl on the way up, so your theory sounds valid, she must have caught an earlier train, murdered her then walked back down the hill again. She would definitely have seen Cordelia if they were both on the 10:50 train. I reckon you are right on that one.