When Abednego Maness was born on 10 February 1823, in Tennessee, United States, his father, William Nathan Maness, was 40 and his mother, Mary Maness, was 42. He married Mary Sanders in 1847, in McNairy, Tennessee, United States. They were the parents of at least 3 sons and 4 daughters. He lived in Liberty Township, Ouachita, Arkansas, United States in 1850. He died in 1856, in Arkansas, United States, at the age of 33, and was buried in De Ann, Hempstead, Arkansas, United States.