The First Missouri Mounted Volunteers played an honorable part in the year of decision, and looking back, a private of Company C determined to write his regiment's history. He was John T. Hughes, an A.B. and a schoolmaster. Familiarity with the classics had taught him that great events are heralded by portents. So when he sat down to write his history he recalled a story which, he cautions us,was "doubtless more beautiful than true." Early in that spring of 1846, the story ran, a prairie thunderstorm overtook a party of traders who were returning to Independence, Missouri, from Santa Fe. When it passed over, the red sun had sunk to the prairie's edge, and the traders cried out with one voice. For the image of an eagle was spread across the sun. They knew then that "in less than twelve months the eagle of liberty would spread his broad pinions over the plains of the west, and that the flag of our country would wave over the cities of New Mexico and Chihuahua."
- From The Year of Decision: 1846 by Bernard De Voto