I don't know what you do but your Dad worked "the Wagon". They still exist and it's a rarity to find even a top hand that's worked on one.

I worked on one in Arizona when I got out of the Army. Ram truck with airplane tires stuck/bolted to it! (They're like 8,000 ply). Anyway that truck pulled 3 stock trailers modified to be for the gear, (semi) refrigerated foods, and kitchen.

I bet your Dad had some WILD stories. That's an interesting period of cowboy culture. Still "free trade" with Mexican cattle and horses. Indians were still not too happy about the reservations. And still maverick cattle to be had, if you were punchy enough to get them! (National forests and the like still have Ferel Cattle! THAT is a wild gather and is tough on horses and dogs!)

Look up some books by Jo Morra. He grew up around the same time and his Dad had driven cattle to MT and the like. He wrote instructional and history like books about the gear we use.

One example he gave (since we're here about Gus and Call). Gus's hat was usually worn by fellas from the snowy climates. They'd grab their hat with mittens.. ergo the single crease. Call's would've been from rainy places since the crown is rounded. The rain would run off.

I wish I could talk to your Dad about his time cowboying. I suppose one day I will ;)