But the groups -- and their employees -- have consistently failed to disclose a tie to the giant discount retailer : financing from the Walton Family Foundation , which is run by the Wal-Mart founder Sam Walton 's three children , who have a controlling stake in the company .
Wal-Mart /business/company/founders Sam Walton
Sam Walton /business/person/company Wal-Mart
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Wal-Mart
ORGANIZATION
Sam Walton
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/business/company/founders
Sam Walton
PERSON
Wal-Mart
ORGANIZATION
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