When David Barr was born about 1862, in Tennessee, United States, his father, David Barr, was 20 and his mother, Caroline Martin, was 21. He married Mary Nash on 28 March 1886, in Cookeville, Putnam, Tennessee, United States. They were the parents of at least 1 daughter. He died on 1 April 1887, in Putnam, Tennessee, United States, at the age of 25, and was buried in Putnam, Tennessee, United States.