A Train Spotter (Britian) A Railfan (United States) A Model Railroader (If they're into miniature trains) Also foamer or railbuff
On most passenger trains the Conductor or his assistant punches the tickets.
Trains were one known hobby of Walt Disney.
In Chicago they are referred to as El Trains (elevated trains).
yes
Conductors.
an engineer
Someone who trains gladiators is called a "lanista". He could also own them.
Steam Trains
Tamer
a pigeon trainer
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.
Paraphernalia