 In 1933, Robert Lehman sold Hertz a minority interest in Lehman Brothers investment bank in New York City and he remained a member of the firm until his death.In 1938, Hertz was prepared to buy Eastern Air Lines from General Motors but the airline's General Manager, Eddie Rickenbacker, was able to raise sufficient financing to acquire Eastern before Hertz could exercise his option.In 1943, he sold his remaining financial interest in Yellow Coach Manufacturing Company to General Motors.