When Ruby Mae Sims was born on 8 February 1903, in Greenville, South Carolina, United States, her father, John Mack Sims, was 20 and her mother, Georgia Ann King, was 17. She had at least 1 son and 3 daughters with Henry Earl Watson. She lived in Oak Lawn Twp, Greenville, South Carolina, United States for about 10 years and Fairview Township, Greenville, South Carolina, United States in 1940. She died on 29 August 1971, in Greenville, South Carolina, United States, at the age of 68, and was buried in Fountain Inn, Greenville, South Carolina, United States.