Formed in 1901 by U.S. Steel Corporation, the Pittsburgh Steamship Company became the largest commercial fleet in the world and assumed a dominant role in Great Lakes shipping and the American steel industry. Tin Stackers tells its story: the ships, the men who sailed them, and the conditions that shaped their times. Drawing on company records and interviews with officials and sailors, Miller tells how the fleet kept organized labor off Great Lakes ships while leading the way in efficient operation, technological advancement, and employee safety. He emphasizes the human element in the company’s history by relating the personal challenges faced by crews, and includes many archival photographs. Now navigating the waters of the lakes as the USS Great Lakes Fleet, Inc., these ships continue to play a part in commerce. Tin Stackers preserves their role in industrial history.