Denise, I have not heard of Henry Dow, I don't know much about the Dow side of my family. But I am supposed to be receiving information soon on my grandfather's (Alphonso Dow b. 1919) brothers and sisters and their children. He still resides in P.O.S Trinidad. But so far I know he does not have any brothers named Henry or sisters named Elizabeth, They could be cousins though because I don't know the names of his father's brothers or sisters (if he had any).