Was Alvah C. Roebuck an African-American?

Roebuck was in charge of the company's business in watches, jewelry, optics, phonographs and motion pictures. He also started two other companies and invented a typewriter. Roebuck lost money in the stock market crash in 1929, and he returned to Sears, Roebuck and Company in 1933. He spent the rest of his career writing a company history and touring stores. He died in 1948.