When Ennis Dodd was born about 1810, in Franklin, Virginia, United States, his father, John Poteet Dodd, was 26 and his mother, Sarah Dickerson, was 24. He married Mary "Polly" C. Guynn on 2 June 1832, in Hendricks, Indiana, United States. They were the parents of at least 5 sons. He lived in Marion Township, Hendricks, Indiana, United States in 1850. He died in April 1853, in Hendricks, Indiana, United States, at the age of 43.