Institution
- Evaporated Milk Association1
- General Baking Company1
- General Foods Corporation1
- Good Housekeeping Institute1
- H.J. Heinz Company1
- Hecker H-O Division of Hecker Products Corporation1
- Igleheart Brothers1
- Igleheart Brothers, Inc.1
- John Hancock Mutual Life Insurance Company1
- Kerr Research and Educational Department1
- Kraft Foods Company1
- Metropolitan Life Insurance Company1
- National Starch Company1
- P. Co., Inc.1
- Pillsbury Flour Mills Co.1
- Pillsbury Home Service Center1
- Pillsbury Mills, Inc.1
- Proctor & Gamble1
- Proctor & Gamble Bakery Service1
- R. B. Davis Company1