When Katharine Mc Lauchlin was born on 7 March 1895, in Wadesboro, Anson, North Carolina, United States, her father, James Argyle Mc Lauchlin, was 27 and her mother, Frances Eleanor Tillman, was 23. She married Wayne Frank Clegern on 22 June 1916, in Oklahoma, Oklahoma, United States. They were the parents of at least 2 sons and 2 daughters. She lived in Sherman, Grayson, Texas, United States in 1900 and Edmond, Oklahoma, Oklahoma, United States for about 30 years. She died on 18 June 1968, at the age of 73.