The California Gold Rush of 1849 and afterwards was a major boost to the lumber and coastal shipbuilding economies, as building lumber needed to be "shipped around the Horn" from Maine until the establishment of a West Coast sawmilling industry. Maine ships also carried gold-seeking migrants, however, and thus were many Mainers (and aspects of Maine culture, such as lumbering and carpentering) transplanted to California and the Pacific Northwest. Three 19th century Mayors of San Francisco, two Governors of California, a Governor of Oregon, and two Governors of Washington were born in Maine.