| Children |
| | 1. Heinrich Wilhelm Lappe, b. 22 Sep 1870, Datteln, Westphalia, Prussia |
| | 2. Elizabeth Lappe, b. 1873, Prussia, Germany |
| | 3. Francis Lappe, b. 1873 |
| | 4. Anna Maria Elisabeth Lappe, b. 16 Aug 1874, Datteln, Westphalia, Prussia |
| | 5. Josephine Lappe, b. May 1878, Petersburgh, IA |
| + | 6. Mary Caroline Lappe, b. 4 May 1879, Petersburg, Ne |
| | 7. Jennie Lappe, b. 13 Jun 1882, Carroll, IA |
| | 8. Annie Lappe, b. Jul 1883, Woodbury, IA |
| | 9. William M Lappe, b. May 1885, Iowa |
| | 10. August Theodore Lappe, b. 22 Apr 1887, Danburg, IA |
| | 11. Katie Lappe, b. Jul 1889, Minnesota |
| | 12. Sadie Lappe, b. Aug 1897, Nebraska |
| | 13. Dorothy Lappe, b. May 1909, Iowa |
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