[19th LA Inf]

Several years ago I stopped at a highway rest area on I-20 in east Texas. There was a pickup pulling three or four dog trailers hooked up in a train, eastbound. The driver told me they were built for the USAF in some small town, I think west of Dallas. These rigs were pretty plush, with roof ACs. Of course even if carrying dogs, the AC would not have power while on the road. At least they were well ventilated. They were just being delivered to some AF base site (maybe Barksdale, where they still keep some nukes).

[AnAmericanMother]

Most of the dog trailers we use in the retriever world don't have A/C -- but they are heavily insulated, have multiple ventilation fans, and are designed for air flow-through.

A nice one can set you back more than a good car.

Jones Trailer Co

These are the top of the line.

[AnAmericanMother]

I bet those trailers you saw came from Jones. They are located in Woodson, which is just west of Dallas.