When Lillian Katherine Thibodeaux was born on 8 November 1928, in Baton Rouge, East Baton Rouge, Louisiana, United States, her father, Clarence Mitchel Thibodeaux, was 30 and her mother, Lillian Russell Cooper, was 20. She married Edwin Henry Ducote on 26 April 1947, in Baton Rouge, East Baton Rouge, Louisiana, United States. They were the parents of at least 2 sons. She lived in East Baton Rouge, Louisiana, United States in 1930 and Police Jury Ward 3, East Baton Rouge, Louisiana, United States in 1940. She died on 16 November 1998, in Baton Rouge, East Baton Rouge, Louisiana, United States, at the age of 70, and was buried in Baton Rouge, East Baton Rouge, Louisiana, United States.