????
                     Dvorak, Frank J (b:1891-1892)(d:)
                    |          ????
           Dvorak, Frank G (b:1924)(d:2004)
          |         |                    ????
          |         |          Jopp, Henry Sr (b:1846)(d:)
          |         |         |          ????
          |          Jopp, Elizabeth A (b:1892)(d:1963)
          |                   |          ????
          |                    (unknown), Catherine (b:1848)(d:)
          |                              ????
 Dvorak, Richard E (b:1957)(alive: 2019)
          |          ????
           Herbert, Jeanne (b:)(d:)
                     ????