Gustav married Christine Friederike Albertine Ristow 21 Feb 1868, Muttrin, Belgard, Pommern. Christine (daughter of Carl Friedrich Gottlieb Ristow and Hedwig Sophie Caroline Lemke) was born 25 Jan 1840, Zadtkow, Belgard, Pommern; died 8 Aug 1906, Muttrinsche Mühle, Belgard, Pommern. [Group Sheet]

1. Olga Frank
2. Clara Helene Hermine Frank was born 19 Aug 1866, Muttrinsche Mühle, Belgard, Pommern.
3. Olga Martha Marie Frank was born 22 Jul 1868, Muttrinsche Mühle, Belgard, Pommern.
4. Helmuth Gustav Wolf Frank was born 1873, Muttrinsche Mühle, Belgard, Pommern; died 31 Jul 1876, Muttrinsche Mühle, Belgard, Pommern.
5. Martha Auguste Albertine Frank was born 22 Jan 1875, Muttrinsche Mühle, Belgard, Pommern.
6. Hedwig Wilhelmine Alwine Frank was born 16 Dec 1877, Muttrinsche Mühle, Belgard, Pommern; died 1945, Berlin, Brandenburg, Germany.
7. Karl Friedrich Wilhelm Frank was born 9 Mar 1881, Muttrinsche Mühle, Belgard, Pommern; died 5 Aug 1955, Eggebek, Scheswig-Holstein, Germany.
8. Walter Ewald Oskar Ristow was born 25 Jun 1887, Muttrinsche Mühle, Belgard, Pommern.