Choo-choo,: The little switch engine (A Rand McNally Giant book)
by Wallace Wadsworth
Category: Railroad trains

Choo-choo thinks he is going to grow up to be a big engine until a passenger engine laughs and tells him he will always be as he is. Choo-choo gets to prove himself when his laughing friend breaks down, and Choo-choo must pull in the whole train by himself.