Finding Aids

The Granite Manufacturing Company of Maryland was a cotton factory on the Patapsco River. This collection contains a minute book of the company that covers 1844 to 1861.

John Zimmermann & Sons, Inc. was a manufacturer of upholstery fabrics in Philadelphia, Pennsylvania, for more than fifty years. This collection consists primarily of financial records from the company's founding through its sale to Merion Securities, Inc. It contains rich payroll and pension data of potential interest to labor historians. The collection also contains records from Zimmermann Mills, Inc. and J-Z, Inc., a division of Merion Securities. These materials are also primarily financial in nature.

The Textile Machine Works began as a braiding machines repair and replacement company for German imported equipment, but they began building their own braiding machines in late 1892. The Textile Machine Works was founded by Henry Janssen (1866-1948) and Ferdinand Thun (1866-1949) on July 5, 1892, in Reading, Pennsylvania. This collection includes administrative and financial records of the parent company and major subsidiaries from 1900 to 1968. There is additional material relating to employee relations and the establishment and operation of the Wyomissing Polytechnic Institute.