Benjamin Gregg was born in 1838, in Greene, Tennessee, United States, his father, Thomas Gragg, was 44 and his mother, Elizabeth McMurtry, was 45. He lived in Tennessee, United States in 1870. He died on 16 April 1912, in Parrottsville, Cocke, Tennessee, United States, at the age of 74.
https://ancestors.familysearch.org/en/GM6F-BZP/benjamin-gregg-1838-1912