Dear Marion, Thank you so much for your response to my question. According to what I have , Hugh Davidson, was born Aug 11, 1822 ( 1823?) in Cynthiana, Harrison, Kentucky and died Feb 19, 1858 in Adams, Decatur Indiana. He married Pricilla Wheeler (b. 1830, D. 1872) in Decatur, Indiana 11/10/1848.
It has been suggested that his father was a John Davidson from Kentucky, but I'm a bit uncertain about that. According to a Y - DNA test I'm possibly related to a John Goolman Davidson, but again I have not found any verification other than the DNA comments.
Thank you for trying to add anything else to this quest.