????
                     Steffen, Lawrence E (b:1948)(d:2002)
                    |          ????
           Steffen, Mathew John (b:1973)(d:)
          |         |                              Martin, William August (b:1876)(d:1951) ==> Chart 2 [P 1]
          |         |                    Martin, George Lyman (b:1897)(d:1946)
          |         |                   |          Myhill, Emma Jane (b:1873)(d:1958) ==> Chart 3 [P 2]
          |         |          Martin, Floyd Donald (b:1927)(d:1999)
          |         |         |         |          Parks, Alfred Leslie (b:1860)(d:1942) ==> Chart 4 [P 3]
          |         |         |          Parks, Bethel Hattie (b:1900)(d:1993)
          |         |         |                    Cook, Susan May (Susie) (b:1875)(d:1961) ==> Chart 5 [P 4]
          |          Martin, Christine Z (b:1953)(alive: 2023)
          |                   |          ????
          |                    Napientek, Theresa M (Cookie) (b:1928)(d:2005)
          |                              ????
 Steffen, Andrew (b:)(d:)
          |          ????
           Cyrulik, Martha Susan (b:)(d:)
                     ????

                               ????
                     Martin, Ludwig (Louis) (b:1822)(d:1897)
                    |          ????
           Martin, William F (b:1853)(d:1920)
          |         |          ????
          |          Schnurstein, Sophia (b:1824)(d:1902)
          |                    ????
 Martin, William August (b:1876)(d:1951)
          |                    ????
          |          Planert, Frank (b:1826)(d:)
          |         |          ????
           Planert, Ida (b:1852)(d:1928)
                    |          ????
                     Schmidt, Wilhelmine (b:1829-1830)(d:)
                               ????