Six canoes were soon completed. The company made their start April 7, 1805, sixteen going down stream with a barge laden with curiosities of the region for President Jefferson, while thirty-two formed the permanent party, which pressed into the great unknown region spreading out before them. The names of all these explorers are preserved in the archives of the War Department under the title of "A roll of the men who accompanied Captains Lewis and Clark on their late tour to the Pacific Ocean through the interior of the continent of North America, showing their rank, with some remarks on their respective merits and services."

Early as was the season, the men suffered much from mosquitoes. Spring kept company with the expedition. Herds of deer, elk, buffaloes and antelopes were seen grazing on the rich grass, and there seemed no end to swans and geese. Passing the alkali regions, the party reached, in the latter part of April, the mouth of a large river, to which they gave the name of Yellowstone. Joseph Fields, of Kentucky, ascended it for eight miles, and was the first white man to do so. Rains, high winds and cold weather welcomed them into the hills of Montana, and often the boats had to be dragged along the banks by means of elk-skin cords. They were thus laboriously making their way when, as has been shown, they were met by Deerfoot and the Shelton brothers at the mouth of the Musselshell River.

The story of the Lewis and Clark expedition, therefore, ended for George and Victor Shelton at the point named. It will not be uninteresting, however, to sum up the history of one of the most memorable enterprises connected with the development of the West. Captains Lewis and Clark gained a great deal of valuable knowledge from the boys, who had traversed a large part of the region which they intended to explore. The excellent memories and the marked intelligence of the youths were admired by the officers.

A few days after the meeting between the two parties Lewis climbed to the top of the highest elevation north of the river and gained his first view of the Rocky Mountains, known at that time as the Stony Mountains. All the numerous streams were described and named. It has been charged against the explorers that they were lacking in sentiment and imagination, for most of the names thus given by them have been supplanted by others, but it cannot be said that these changes have always been an improvement.

On the second day of summer the explorers had to face a puzzling problem. A large branch flowing from the north was so similar to the Missouri that it seemed it must be that river, while the one hitherto accepted as such bore to the south. Which was the branch that, according to the reports of the Indians, had its rise in the Rocky Mountains, near the source of the Columbia? To settle the question the party divided, one ascending either branch. Upon reuniting it was agreed that the south branch was the real Missouri. The northern stream was named the Maria. This was another of the few instances in which the title given by the explorers stuck.

The rapids five miles below the Falls of the Missouri were reached on June 15. These had to be passed by a portage. An idea can be formed of the great difficulties encountered when it is stated that, although the portage was hardly eighteen miles long, it took eleven days to make it. The men, however, were in high spirits, and at night Peter Cruzatte added to the "gayety of nations" by playing on his violin.

About the middle of August horses were obtained from the tribe from which the Indian wife of the interpreter had been stolen. The passage through the mountains or over the Divide caused the greatest suffering of the expedition. The men had to cut their way in many places through the brush, clamber over jagged stones and climb such precipitous walls that several of their horses were crippled. Then snow began falling and the nights became very cold. Game seemed to have deserted the country, and the sufferers had to eat all their supply of flour and parched corn. Beginning with September 14, they were obliged to kill and eat some of their horses, and even at that had to be very sparing or the supply would have been exhausted.

Descending the western side of the mountains, however, they found abundant edible roots, dried salmon and dried berries at the Indian villages. The famishing men feasted so ravenously that most of them became ill. New canoes were constructed, and leaving their horses with a chief they started down the Clearwater and reached the Columbia on October 16. Ten days were occupied in making the portage of the falls and rapids, and on the morning of November 7, when the fog lifted, they saw in the distance the Pacific Ocean.

A month later the party went into winter quarters. It rained eternally, the weather was chilly and their condition for a long time was miserable in the extreme. The shelter built for themselves was called Fort Clatsop. There they remained until March 23, 1806, when the explorers set out on their return journey. They had to face difficulties, hardships and sufferings again, but they had learned from experience and were better prepared to do so. They embarked on the Yellowstone July 24, and ten days later reached its junction with the Missouri. At this point the men were driven almost frantic by the mosquitoes. At midday, September 23, 1806, they arrived at St. Louis, where the whole town turned out to welcome them. There the party was disbanded, and, passing to their various destinations, the Lewis and Clark expedition took its place in history.

During the latter part of the chat between Lewis and Clark, Deerfoot came quietly forward and sat down beside the Shelton boys. He listened closely to all that was said. When the officers asked questions, the Shawanoe left the answers to the brothers. But more than once they were in doubt, and turned to him for aid. His prompt response in every instance was noticed by the officers, who, after a time, addressed their questions almost wholly to him.