Institution
- John F. Jelke Company1
- John Hancock Mutual Life Insurance Company1
- John Henry McCray papers, 1929-1989; University of South Carolina. South Caroliniana Library5
- John Morrell & Co.1
- Joseph Tetley & Co., Inc., New York1
- K. C. Baking Powder1
- K. C. Baking Powder, Chicago, Illinois1
- Kaminski House Museum, http://www.kaminskimuseum.org/186
- Kane & Harcus Co.2
- Kane and Harcus1
- Karo1
- Kellogg Company2
- Kellogg's2
- Kemp's1
- Kerr3
- Kerr Research and Educational Department1
- Kewaskum Utensil Company1
- KingTaste1
- Kingan and Co.3
- Kings Mountain National Military Park4,416