My branch of the Eckhardts also were in Yorktown. Then on to Houston, TX.Caroline Kleberg (b. 1/15/1840 in DeWitt, TX) daughter of Robert Justus Kleberg and Rosalia Von Roeder married Wilhelm Rudolph Eckhardt. They had a son named William Rudolph Eckhardt who married Iris Dee Kent.Caroline's brother Robert Justus Kleberg, Jr. married Alice Gertrudis King (King Ranch).Do you have any further info on the Eckhardts? I can't get past Wilhelm.I am willing to share info.