J Mayo Williams
Biography
Jay Mayo "Ink" Williams (September 25, 1894 – January 2, 1980) was a pioneering African-American producer of recorded blues music. Some historians have claimed that Ink Williams earned his nickname by his ability to get the signatures of talented African-American musicians on recording contracts, but in fact it was a racial sobriquet from his football days, when he was a rare Black player on white college and professional teams. He was the most successful "race records" producer of his time, breaking all previous records for sales in this genre.
Bio from Wikipedia