Copyright © 1989 State Historical Society of Iowa. This article is posted here for personal use, not for redistribution.
Zieren, Gregory R. "A Century of Meatpacking and Packinghouse Labor in Chicago." The Annals of Iowa 49 (1989), 692-709.
Available at: http://ir.uiowa.edu/annals-of-iowa/vol49/iss8/6