When Mason Moses Roberts was born on 14 May 1840, in Rockcastle, Kentucky, United States, his father, Elisha W Roberts, was 30 and his mother, Pauline Stapp, was 28. He married Jane A Harris on 19 January 1865, in Knox, Kentucky, United States. They were the parents of at least 2 sons and 2 daughters. He lived in Kentucky, United States in 1870 and Bayou Township, Ozark, Missouri, United States in 1900. He died on 14 March 1908, in Elijah, Ozark, Missouri, United States, at the age of 67, and was buried in Baptist Hill Cemetery, Elijah, Ozark, Missouri, United States.