In 1842 the Indians in the Eastern Oregon Country became alarmed for the reason that they believed the Americans intended to take away their lands. The Indians knew that the Hudson's Bay Company and its employées were traders and did not care for lands, except as incidental to trading. At this time some of the Indians desired to raise a war party and surprise and massacre the American settlements in the Willamette Valley. This could have been done easily at that time. Through the influence of Dr. McLoughlin with Peopeomoxmox (Yellow Serpent), a chief of the Cayuses, this trouble was averted. In 1845 a party of Indians went to California to buy cattle. An American there killed Elijah, the son of Peopeomoxmox. The Indians of Eastern Oregon threatened to take two thousand warriors to California and exterminate the whites there. Largely through the actions of Dr. McLoughlin the Indians were persuaded to abandon their project. John Minto, a pioneer of 1844, in an address February 6, 1889, narrated the following incident. In 1843 two Indians, for the purpose of robbery, at Pillar Rock, in the lower Columbia, killed a servant of the Hudson's Bay Company. One of the Indians was killed in the pursuit. The other was taken, after great trouble. There was no doubt as to his guilt. In order to make the lesson of his execution salutary and impressive to the Indians, Dr. McLoughlin invited the leading Indians of the various tribes, as well as all classes of settlers and missionaries, to be present. He made the arrangements for the execution in a way best calculated to strike terror to the Indian mind. When all was ready, and immediately prior to the execution, with his white head bared, he made a short and earnest address to the Indians, showing them that the white men of all classes, Englishmen, Americans, and Frenchmen, were as one man to punish such crimes. In a technical sense Dr. McLoughlin had no authority to cause Indians to be executed or to compel them to restore stolen goods, as in the William and Ann matter and the Jedediah S. Smith case.