| Children |
| | 1. Wilhelm Emil Hendrik Maass, b. 18 Feb 1898, Ubbergen  d. 10 Nov 1979, Eindhoven (Age 81 years) |
| | 2. Gerrit Johan Maass, b. 14 Jul 1899, Erlecom |
| | 3. Karel Hendrik Maass, b. 30 Oct 1902, Erlecom d. 1 Sep 1964, Erlecom (Age 61 years) |
| | 4. Julius Antoon Maass, b. 10 Dec 1901, Erlecom d. 6 Nov 1928, Eindhoven (Age 26 years) |
| | 5. Karel Hendrik Maass, b. 26 Sep 1900, Erlecom |
| | 6. Gustaaf Wilhelm Maass, b. 31 Dec 1903, Erlecom d. 2 Jan 1904, Berg en Dal (Age 0 years) |
| + | 7. Maria Anna Maass, b. 24 Dec 1904, Erlecom |
| | 8. Antoon Albert Maass, b. 8 Jul 1906, Erlecom d. 24 Apr 1910, Erlecom (Age 3 years) |
| | 9. Friedrich Carl Maass, b. 28 Sep 1907, Erlecom d. 14 Jun 1908, Erlecom (Age 0 years) |
| + | 10. Anna Helena Maass, b. 10 Jan 1909, Erlecom d. 1989 (Age 79 years) |
| | 11. Wilhelmina Johanna Maass, b. 8 Apr 1910, Erlecom d. 18 May 1910, Erlecom (Age 0 years) |
| | 12. Antoon Alphons Maass, b. 25 Dec 1911, Erlecom d. 21 Jul 1924, Nijmegen (Age 12 years) |
| + | 13. Joseph Alphons (Jos) Maass, b. 6 Jul 1915, Ubbergen d. 31 Mar 1979, Groesbeek (Age 63 years) |
|
1872 - 1923 (50 years)