Samuel Robson (Rob) Walton, born 1944, is eldest son of Sam Walton, founder of Wal-Mart, the world's most powerful retailer. His net worth is close to $20 billion as of 2004.
Rob Walton was named chairman of the Board of Directors of Wal-Mart on April 7, 1992, two days after his father's death, and as of April, 2005 still maintains that title.
The name Robson comes from his mother's side of the family, the Robsons.
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