[2] In 1957, Hart was hired as assistant to the director of the Atlanta-based Georgia Department of Archives and History, working under Mary Givens Bryan.
As director, Hart started an annual archivist training program in 1964 which continues today as the Georgia Archives Institute, attracting people from across the country and world.
Even after her retirement, Georgia Secretary of State David Poythress called her "director emeritus" of the Department of Archives and History.
Hart was also the historian for Madison's First United Methodist Church, and she was involved in the Daughters of the American Revolution and the Georgia Wildlife Federation.
[1] After her death, former President Jimmy Carter said Hart would be "remembered and appreciated for generations to come for devoting her talents and professional career to preserving and chronicling Georgia's history.