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.