Family/Spouse: Anna Maria Höves. Anna (daughter of Jacob Höves and Anna Maria Sluijter) was born on 29 May 1839 in Kleve, Duitsland; died on 15 Feb 1912 in Nijmegen. [Group Sheet] [Family Chart]

1. Johann Gerhard Maass was born on 18 Jun 1860 in Kleve, Duitsland; was christened about 1860 in Kleve, Duitsland; died on 11 Jul 1951 in Rotterdam.
2. Carl Emil Maass was born on 18 Sep 1863 in Kleve, Duitsland; died on 13 Jul 1941 in Nijmegen.
3. Josephine Pauline Maass was born on 3 Nov 1868 in Kleve, Duitsland; died on 18 Dec 1954 in Beneden Leeuwen.
4. Carl Friedrich Maass was born on 05 Oct 1870 in Emmerich, Duitsland; died on 01 Apr 1937 in Nijmegen.
5. Georg Julius Maass was born on 2 Apr 1872 in Emmerik, Duitsland; died on 27 Mar 1933 in Nijmegen.
6. Alphons Gustaaf (Gustav) Maass was born on 1 Jan 1875 in Emmerik, Duitsland; died on 28 Oct 1953 in Nijmegen.