mayor william hartsfield is best known for

transforming the city of Atlanta into a major transportation hub and for his efforts in desegregating the city's public institutions. He served as mayor of Atlanta for over 20 years, from 1937 to 1962, making him the longest-serving mayor in the city's history. Hartsfield played a key role in expanding Atlanta's airport, now known as Hartsfield-Jackson Atlanta International Airport, and was instrumental in securing the funding for the construction of the interstate highway system that connected Atlanta to other major cities in the Southeast. Additionally, Hartsfield worked to improve race relations in Atlanta, advocating for the desegregation of schools and other public facilities during the civil rights movement. His leadership and vision helped to shape Atlanta into the thriving metropolis it is today.