Hauling horses
https://www.autoblog.com/2019/03/12/horse-transported-in-pickup-bed/ This article caused me to remember my grandfather Ben Wann. Apparently, he would haul Smokey, his palomino mare around the ranch in a pick up without any kind of frames/sideboards in the 1950s. Can't remember seeing him haul the horse in this manner, but this has been confirmed by other sources. I rode with him on this horse as a child. And, also recall many times riding around with him in his old Chevy pick up truck looking through his cows and/or goats. Grandpa was gifted in mathematical ability and would impress me by counting his goats by 6s and 7s as a herd of a couple of hundred came running to meet us.