She was a Vice-President of KERA when her cousin (on her mother's side), Governor Edwin P. Morrow, signed into law Kentucky's ratification of the Nineteenth Amendment on January 6, 1920.

She read law in her father's office and traveled with him on his campaigns, riding a mule to get through the mountains of eastern Kentucky Appalachia.

[2] After Elise Bennett Smith resigned as president of the Kentucky Equal Rights Association (KERA), South was elected in November 1916.

In keeping with the NAWSA's ideals of non-partisanship, she publicly commended the Democratic President Woodrow Wilson for his role in advocating for the federal amendment: "...

"[6] After women were granted the right to stand for any electoral office, South ran in the summer of 1921 on the Republican ticket for a seat on the Frankfort City Council.