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Early years

Louis's amateur performances attracted the interest of professional promoters, and he was soon represented by a black Detroit-area bookmaker named John Roxborough. As Louis explained in his autobiography, Roxborough convinced the young fighter that white managers would have no real interest in seeing a black boxer work his way up to title contention:

told me about the fate of most black fighters, ones with white managers, who wound up burned-out and broke before they reached their prime. The white managers were not interested in the men they were handling but in the money they could make from them. They didn't take the proper time to see that their fighters had a proper training, that they lived comfortably, or ate well, or had some pocket change. Mr. Roxborough was talking about Black Power before it became popular.

Roxborough knew a Chicago area boxing promoter named Julian Black who already had a stable of mediocre boxers against which Louis could hone his craft, this time in the heavyweight division. After becoming part of the management team, Black hired fellow Chicago native Jack "Chappy" Blackburn as Louis's trainer. Louis's initial professional fights were all in the Chicago area, his professional debut coming on July 4, 1934, against Jack Kracken in the Bacon Casino on Chicago's south side. Louis earned $59 for knocking out Kracken in the first round. $59 in 1934 is equivalent to $1,148.60 in 2020 dollars. Louis won all 12 of his professional fights that year, 10 by knockout.

In September 1934, while promoting a Detroit-area "coming home" bout for Louis against Canadian Alex Borchuk, Roxborough was pressured by members of the Michigan State Boxing Commission to have Louis sign with white management. Roxborough refused and continued advancing Louis's career with bouts against heavyweight contenders Art Sykes and Stanley Poreda.

While training for a fight against Lee Ramage, Louis noticed a young female secretary for the black newspaper at the gym. After Ramage was defeated, the secretary, Marva Trotter, was invited to the celebration party at Chicago's Grand Hotel. Trotter later became Louis's first wife in 1935.

During this time, Louis also met Truman Gibson, the man who would become his personal lawyer. As a young associate at a law firm hired by Julian Black, Gibson was charged with personally entertaining Louis during the pendency of business deals.