The Oregon Trail: Sketches of Prairie and Rocky-Mountain Life by Francis Parkman

Last spring, 1846, was a busy season in the City of St. Louis. Not only were emigrants from every part of the country preparing for the journey to Oregon and California, but an unusual number of traders were making ready their wagons and outfits for Santa Fe. Many of the emigrants, especially of those bound for California, were persons of wealth and standing. The hotels were crowded, and the gunsmiths and saddlers were kept constantly at work in providing arms and equipments for the different parties of travelers. Almost every day steamboats were leaving the levee and passing up the Missouri, crowded with passengers on their way to the frontier.