Hi again dagsky,
I found the wholesale members file from the National Grocers Association, the group suggested by Crest in locating wholesale suppliers (which confirms Frank's advice). :)
National Grocers Association - Wholesale Members
Affiliated Foods Midwest
Norfolk, NE
Affiliated Foods, Inc.
Amarillo, TX
Alex Lee, Inc.
Hickory, NC
Allegiance Retail Services, LLC
Iselin, NJ
Associated Food Stores, Inc.
Salt Lake City, UT
Associated Grocers of Florida
Pompano Beach, FL
Associated Grocers of New England
Pembroke, NH
Associated Grocers of the South, Inc.
Birmingham, AL
Associated Grocers, Inc.
Baton Rouge, LA
Associated Wholesale Grocers
Kansas City, KS
Bozzuto's, Inc.
Cheshire, CT
C & S Wholesale Grocers
Keene, NH
Central Grocers, Inc.
Joliet, IL
Certco, Inc.
Madison, WI
Great North Foods
Alpena, MI
Imperial Distributors, Inc.
Auburn, MA
KeHE Distributors, LLC
Romeoville, IL
Key Food Stores Cooperative
Staten Island, NY
Laurel Grocery Company, LLC
London, KY
Milo B. Butler & Sons Limited
Nassau, AB Canada
Mitchell Grocery Corporation
Albertville, AL
Nash Finch Company
Edina, MN
Olean Wholesale Grocery Cooperative, Inc.
Olean, NY
Piggly Wiggly Alabama Distributing Company, Inc.
Bessemer, AL
Spartan Stores, Inc.
Grand Rapids, MI
SUPERVALU INC.
Minneapolis, MN
The Brenmar Company
LaVista, NE
The Grocers Supply Co., Inc.
Houston, TX
Unified Grocers
Commerce, CA
URM Stores, Inc.
Spokane, WA
Wakefern Food Corporation
Keasbey, NJ
Let me know if you need help in contacting them. Cheers! :)