In 1850 W. P. Abrams and C. A. Reed erected the first steam sawmill in Oregon on the river bank near where Jefferson Street is located. This proved a profitable enterprise. Just south of the mill was an Indian encampment, occupied by different tribes. Their wigwams were constructed of bark and brush. Squaws sat on mats, weaving their water tight baskets, often very prettily decorated, while the Indian men lounged about in scarlet blankets, as if posing for a picture, and their children sat in their canoes gliding o'er the water with swanlike grace. Information had been circulated among them that the mill would be started up on a certain afternoon, and all were curious to see the working of this new evidence of the white man's superiority. At the stated time the Indians were in and around the mill; suddenly the steam whistle sounded its shrill shrieks in a continuous blood curdling blast, which sent every Indian man, woman and child fleeing for their lives into the dense woods. It was a long time before they could be induced to go near the mill. In 1847, 1848, and 1849 many emigrants arrived who settled in Portland, adding thrift and push to our small colony. The discovery of gold in California on the twenty-fourth of January, 1848, caused Portland to look like a deserted hamlet, as all men and boys caught the gold fever and started for the golden shores of California, where many were killed by the Digger Indians; others died of various diseases, and some returned home broken in health, while others returned with their hard earned gold. Ships arrived yearly in Oregon with supplies for the Hudson Bay Company, by way of the Sandwich Islands. In 1849 twenty vessels arrived, and quickly loaded with flour, salmon, pork, shingles, lumber, and other products, which they carried to the California market. From that time Portland began laying aside her swaddling clothes. The first mayor of Portland was Hugh D. O'Bryant, who was elected in 1851. When the city was incorporated it was in Washington County, and the people from Portland had to go to Hillsboro to hold court. In 1856 a meeting of the citizens of Portland was called to organize a volunteer company to protect the people and property, in case of an Indian outbreak; two hundred names were enrolled and H. W. Davis was appointed captain. In 1850 the steamer Lot Whitcombe was built at Milwaukie, Oregon. In 1851 the steamers Eagle and Black Hawk were running between Portland and Oregon City, where those who wished to proceed farther south, would walk to Canemah and there board the steamer Beaver or Enterprise which would convey them to any of these points: Butteville, Champoeg, Mission Bottom, or Salem. Steamers Belle and Fashion were running between Portland and the Cascades. In 1853 David Monnastes and H. W. Davis erected a foundry on First Street. Many other industries were established.