1  Karl Johann Ferdinand Ohm (26 Jun 1891 Hannover, Niedersachsen – 20 Sep 1982 Hannover)   +  Elly Anna Marie Langmann (21 Jan 1904 Rheydt-Odenkirchen, Krs. Gladbach – 6 Feb 1993 Hannover, Niedersachsen)      2  Gerhard Ferdinand Eugen Ohm (23 Nov 1924 Clausthal-Zellerfeld – 21 May 1990 Köln, North Rhein-Westfalen)      2  Helga Elisabeth Martha Ohm (6 Oct 1925 Clausthal-Zellerfeld – )         +  Werner Karl Robert Mahn (15 Jun 1920 Clausthal-Zellerfeld – 3 Aug 2002 Clausthal-Zellerfeld)            3  Ulrich Gerhard Günter Herbert Mahn (26 Sep 1948 Clausthal-Zellerfeld – )               +  Dagmar Redepennig                   4  Marco Mahn (27 Jul 1972 – )                  4  Henning Mahn (13 Nov 1978 – )            3  Jürgen Günther Dieter Mahn (25 Aug 1950 Clausthal-Zellerfeld – )               +  Christine Gottschalk       2  Dieter Karl Heinrich Ohm (5 Sep 1928 Clausthal-Zellerfeld – )         +  Gerda Minna Emma Ulrich (14 Sep 1936 Graste, Niedersachsen – )            3  Ulrike Helga Marga Ohm-Wangler (13 Feb 1956 Clausthal-Zellerfeld – )               +  Günter Wangler (3 Nov 1951 – )            3  Annette Ohm (16 Sep 1960 Hannover, Niedersachsen – )               +  Albert Ritgen (20 May 1964 Hannover, Niedersachsen – )            3  Kerstin Ohm (29 Jan 1967 Hannover, Niedersachsen – )               +  Dirk Manfred Felsmann (20 Jul 1964 Dannenberg (Elbe) – )                  4  Paul Dieter Felsmann (22 Sep 1994 Gotha, Thüringen – )                  4  Jakob Felsmann (18 Apr 1996 Hannover, Niedersachsen – )                  4  Ida Gerda Ingrid Felsmann (28 Nov 2003 Hannover-Misburg, Niedersachsen – )