Cassius Willson is my 3rd great grandfather. I am applying to the D.A.R. under his father, John Willson, Jr. Cassius moved to Ohio in 1837 and died in Denmark, Ashtabula on 2 May 1876. I have obtained the death certificate of Cassius but unfortunately, it does not list his parents. I need more confirmation that Cassius was the son of John Willson, Jr