Identifying wood from train carriage

Hi,

I am restoring an antique railway carriage (1909) and I would like to identify some of the wood, photos attached. The first photo is of some wooden slats tacked across floorboards of the same wood. The second is of the skirting board, which I think is the same as the floor. The third photo is some wood which is a curved beam for the door frame .

I have a lot to learn and appreciate any help.

Thanks,

Maryanne