Institution
- Portable Kitchens Division of Hamlin Products, Inc.1
- Poultry & Egg National Board1
- Prince Golden1
- Private Collection1
- Producers Creamery Company1
- Quaker Oats1
- Quality Press, Milwaukee1
- R. B. Davis Company1
- R. U. Delapenha & Co., Inc.1
- Rath's Black Hawk1
- Rawleigh1
- Remington Arms Company1
- Republic Metalware Company1
- Reynolds Metals Company1
- Richard Hellmann, Inc.1
- Royal Baking Powder Co.1
- Royal Baking Powder Co., New York1
- Royal Baking Powder, New York1
- Royal Baking Powder, Standard Brands Inc1
- Royal Baking Powder, Standare Brands Inc.1