When Lionel Joseph Thibodeaux was born on 11 April 1887, in Breaux Bridge, St. Martin, Louisiana, United States, his father, Benjamin Thibodeaux, was 30 and his mother, Marie Blanche Babin, was 25. He married Eunice Thibodeaux on 24 August 1912, in St. Martin, Louisiana, United States. They were the parents of at least 3 sons and 2 daughters. He lived in New Iberia, Iberia, Louisiana, United States in 1920 and Lafayette, Lafayette, Louisiana, United States for about 10 years. He died on 13 December 1963, in St. Martin, Louisiana, United States, at the age of 76, and was buried in Breaux Bridge, St. Martin, Louisiana, United States.