Born in Belgium in 1801, young De Smet was educated in a religious school at Malines. When twenty years of age he responded to an appeal to cross the Atlantic and carry the gospel to the red men of the Western continent. Arrived in Philadelphia (1821), the young Belgian was astonished to see a well-built town, travelled roads, cultivated farms, and other appurtenances of civilization; he had expected only a wilderness and savages. Two years were spent in the Jesuit novitiate in Maryland, before the zealous youth saw any traces of frontier life. Then the youthful novice was removed to Florissant, Missouri, not far from St. Louis, where the making of a log-cabin and the breaking of fresh soil furnished a mild foretaste of his future career. Still more years elapsed before the cherished project of missionary labor could be realized. In 1829 St. Louis University was founded, and herein the young priest, who had been ordained in 1827, was employed upon the instructional force. Later years (1833-37) were spent in Europe, while recruiting his health and securing supplies for the infant university. It was not until 1838 that the first missionary enterprise was undertaken by Father de Smet, when a chapel for the Potawatomi was built on the site of the modern Council Bluffs. There, in 1839, the fourth Flathead deputation rested after the long journey from their Rocky Mountain home; and at the earnest solicitation of the young missioner, he was in the spring of 1840, detailed by his superior to ascertain and report upon the prospects of a mission to the mountain Indians.