Question: Louis Barnett became the youngest supplier of an employee-owned retailer under which partnership?
Sentence (from "Jackson Barnett"): Jackson Barnett (1 January 1856 – 29 May 1934) was an Oklahoma landowner of the Muscogee or Creek people, who became known as "the world's richest Indian" when oil wells on his land produced as much as $24 million worth of oil starting in 1912.
Relevant evidence: No