When Nial Bemis was born on 9 July 1818, in Westminster, Windham, Vermont, United States, his father, Davis Bemis, was 37 and his mother, Rubie Miller, was 23. He had at least 5 sons and 3 daughters with Susan Oakes. He lived in Vermont, United States in 1870. He died on 7 February 1890, in Athens, Windham, Vermont, United States, at the age of 71, and was buried in Athens, Windham, Vermont, United States.