Thompson’s watercolor painting of the U.S. Engineer Battalion flag. The engineers’ motto was “Essayons”—French for “Let Us Try!” By the time the battalion received its flag, Thompson was serving as a corporal in Company D. (Library of Congress)
Thompson’s watercolor painting of the U.S. Engineer Battalion flag. The engineers’ motto was “Essayons”—French for “Let Us Try!” By the time the battalion received its flag, Thompson was serving as a corporal in Company D. (Library of Congress)