Thomas,I think Your David Isiah Pugh is the son of my Isiah Pugh.According to the 1880 Census a son listed D. I. Pugh born in 1874. Another son listed as J.E. Pugh born in 1870 turned out to be John Elias Pugh.Thomas V Pugh born in 1876.
Where did your David Isiah Pugh live and died? I am excited about this find. Hope to hear from you soon.