- Rock, James M. and Peckham, Brian W. “Recession, Depression, and War: The Wisconsin Aluminum Cookware Industry, 1920-1941”. Wisconsin Magazine of History. 1990 Spring; 73(3):202-233. Notes: This article discusses Wisconsin manufacturers of aluminum cookware and the challenges they faced as the industry developed from 1920 to 1941. A few paragraphs (p. 223-224) describe union organizing efforts in the industry in Wisconsin during the 1930s; three unions are mentioned: the Aluminum Workers Union, the International Association of Machinists, and the United Automobile Workers. At least half of the illustrations in the article show working conditions in the factories.