The original views : drawn by the artist S. Seymour during the expedition from Pittsburgh to the Rocky Mountains under the command of Major Stephen A. LongSeymour, Samuel, active 1797-18221819-1820.engWatercolors of Pawnee, Kiowa, and Arapaho Indians, and views of the Arkansas River, the Platte River, and the Rocky MountainsSamuel Seymour was an engraver of portraits in Philadelphia, 1797-1822. He was appointed artist of Major Long's expedition which traveled up the Missouri to Council Bluffs and then along the Platte to the Rocky Mountains and returned by the Arkansas and Red Rivers, 1819-20.