About Brian Willard David Yorga Books by Brian Willard David Yorga Examination of Prehistoric Copper Technology and Copper Sources in Western Arctic and Subarctic North America by (author) U.M. Franklin, E. Badone, R. Gotthardt & Brian Willard David Yorga Washout A Western Thule Site on Herschel Island, Yukon Territory by (author) Brian Willard David Yorga