Aloha! Idon't know anything about your grandfather but my great grandfather, Elijah Allen,was your David Uriah Allen's brother. Do you have a family bible or any other records that trace the family tree back to John Allen (father of Elijah, David Uriah and ten other brothers and sisters)and Sarah Johnson? I am trying to find out who John Allen's father was. He was born 1830 or thereabouts. I think we must be 3rd cousins. You can reach me at email@example.com. Good Luck!