Samuel Moore "Sam" Walton (March 29, 1918 – April 5, 1992)

Oklahoma-born Sam Walton is the founder of Walmart retail chain and
Sam’s Club. He worked at J.C. Penny in Des Moines, Iowa, training in
management. He managed his first variety store, which was part of
the Butler Brothers chain, in 1945 when he was only 26.

Walton’s Five and Dime, now the Wal-Mart Visitor’s Center, Bentonville

Sebastian Spering Kresge (July 31, 1867 – October 18, 1966)

Kresge was the founder of the S. S. Kresge Company, one of the
20th century’s largest retail organizations. The company was later
renamed the Kmart Corporation in 1977.