Continuing with the Oregon Trail by Parkman you'll find a description of an older Delaware Indian, his horse and his saddle. I hope you enjoy this vivid description.
Encamping near a spring, by the side of a hill, we resumed our journey in the morning, and early in the afternoon had arrived within a few miles of Fort Leavenworth. The road crossed a stream densely bordered with trees, and running in the bottom of a deep woody hollow. We were about to descend into it when a wild and confused procession appeared, passing through the water below, and coming up the steep ascent toward us. We stopped to let them pass. They were Delawares, just returned from a hunting expedition. Ah, both men and women, were mounted on horseback, and drove along with them a considerable number of packmules, laden with the furs they had taken, together with the buffalo-robes, kettles, and other articles of their travelling equipment, which, as well as their clothing and their weapons, had a worn and dingy aspect, as if they had seen hard service of late. At the rear of the party was an old man, who, as he came up, stopped his horse to speak to us. He rode a little tough, shaggy pony, with mane and tail well-knotted with burs, and a rusty Spanish bit in its mouth, to which, by way of reins, was attached a string of raw hide. His saddle, robbed probably from a Mexican, had no covering, being merely a tree of the Spanish form, with a piece of grizzly bear's skin laid over it, a pair of rude wooden stirrups attached, and in the absence of girth, a thong of hide passing around the horse's belly. The rider's dark features and keen snaky eyes were unequivocally Indian. He wore a buckskin frock, which, like his fringed leggings, was well polished and blackened by grease and long service; and an old handkerchief was tied around his head. Resting on the saddle before him lay his rifle, a weapon in the use of which the Delawares are skilful, though, from its weight, the distant prairie Indians are too lazy to carry it.
"Who's your chief?" he immediately inquired.
Henry Chatillon pointed to us. The old Delaware fixed his eyes intently upon us for a moment, and then sententiously remarked:
"No good! Too young!" With this flattering comment he left us, and rode after his people.