Heinrich married Wilhelmine Henriette Neitzel 6 May 1866, Belgard, Pommern. Wilhelmine (daughter of Daniel Gottlieb Neitzel and Dorothea Sophie Henriette Drawanz) was born 17 Jan 1843, Neu Lülfitz, Belgard, Pommern. [Group Sheet]

1. Bertha Pauline Marie Neitzel was born 27 Mar 1865, Groß Panknin, Belgard, Pommern.
2. August Carl Julius Fick was born 19 Jul 1867, Belgard, Pommern.
3. Franz Heinrich Carl Fick was born 8 Aug 1871, Belgard, Pommern.
4. Paul Wilhelm Otto Fick was born 3 Mar 1874, Belgard, Pommern; died 16 Aug 1874, Belgard, Pommern; was buried 19 Aug 1874, Belgard, Pommern.
5. Max Emil Otto Fick was born 4 Dec 1879, Belgard, Pommern.
6. Anna Helene Louise Fick was born 31 Jul 1881, Belgard, Pommern.