Yes, the type is known as a "drover's caboose," often being used on trains of stock cars to transport the cow pokes who loaded and unloaded the cars. Note: Cow Poke is a different trade than Cow Boy, and of lower social status.
Of course, the type would likely be useful for mixed-train service where passengers were far and few between, as well. Mr. Weston's description covers both, eh?
:B~)