Looking for ties to my great-grandparents, John Hickey (who was at one time postmaster of Volta in Merced County) and Mercedes Echeverria. They had the following children: Annie (Shore) John, Cornelius, Elmo, Roy, James, Henrietta aka Geraldine(Cole, Clark, Scala, Cloud), Viola (King), Carmen, and possibly more. Any information will be appreciated. Many thanks.