A cart.
it called a cart or wheelbarrel
A cart.
carvan
It is called harnessing or hitching a horse to a wagon. This involves using a harness with straps to attach the horse to the wagon, allowing the horse to pull the weight of the wagon.
It is not wagon trains. Groups of covered wagons are called prairie schooners. But we can also call it wagon trains, I guess.
cause they are wagon burners xD
A horse drawn wagon on rails is called a sled or sleigh.
A young wagon is typically referred to as a "cart" or a "scooter."
Wagon trains.
Doodle is pulled along in what is called a go cart in the story, but is probably something like a small wagon.
A maker of wagons is called a wainwright.