When Thomas Mason was born on 10 March 1792, in Guilford College, Guilford, North Carolina, United States, his father, Thomas Mason, was 32 and his mother, Elizabeth Louise Scally, was 22. He married Griselda Elliott on 22 May 1816, in Wayne, Webster Township, Wayne, Indiana, United States. They were the parents of at least 2 sons and 3 daughters. He lived in Delaware, Indiana, United States in 1831 and Jackson Township, Miami, Indiana, United States in 1850. He died on 21 September 1863, in Ironton, Sauk, Wisconsin, United States, at the age of 71, and was buried in Ironton, Sauk, Wisconsin, United States.