mayor William B. hartsfield is best know for..

his long tenure as mayor of Atlanta, serving from 1937 to 1961 and then again from 1961 to 1970. Hartsfield was instrumental in expanding Atlanta's airport, now known as Hartsfield-Jackson Atlanta International Airport, which has become one of the busiest airports in the world. He also played a significant role in promoting civil rights and desegregation in Atlanta during a time of great racial tension in the South. Hartsfield's leadership and progressive policies helped to modernize and transform Atlanta into the vibrant city it is today.