Born in Arusha, Tanzania, in 1933, Baillon, who died last Wednesday, worked as a secretary at J Leslie Smith Attorneys in Pietermaritzburg for 38 years and was deeply passionate about the Comrades Marathon.
She had been involved with the race organising committee since 1980 and served in various portfolios including refreshment stations and marshalling.
She also assisted at the Green Number Club. She was a long serving member who would be fondly remembered for her ever-present smile and kindness, said CMA chairman, Macdonald Chitja.
"Topsy's graceful presence at Comrades will be missed but her unique reassuring smile will remain with us forever," he said.
"We wish her family, friends and all who knew her strength during this difficult time."
Known for her punctuality and reliability, CMA board member Celi Makhoba said when Baillon was given a task, she would do it 100 percent.
"Even when she needed to voice her opinion, she would say it with dignity and in a very polite fashion. We will miss her. May her soul rest in peace," Makhoba said.
Baillon is survived by her three sons Gerry, Anthony and Leslie, two grandchildren Holly and Michael and her two sisters, Sylvia and Helen.
A memorial service to celebrate Baillon's life will take place on Thursday at 3pm at Comrades Marathon House, 18 Connaught Road, Scottsville, Pietermaritzburg.
In lieu of flowers, the family has requested that donations be made to Hospice.