HI, My paternal grandfather's name was Roger Darby Duvall. He was born in the 1910's in Md, he was married to Jacqueline Reed in the 1940's, died in the 1990's and is buried in Gaithersburg, Md. Unfortunately, this is all I know about this part of the family. He divorced Jacqueline a few short years after they were married so we know nothing of his lineage (past or present). Any information anyone has would be great. Thanks!