 Derk Zijlstra Married to: Children: 1.  Alberdina Immerencia Gebina ZijlstraBorn 31 Mar 1900 Leeuwarden 2. Hendericus Theodorus ZijlstraBorn 12 Feb 1902 Leeuwarden, died 5 Dec 1933 Mönchengladbach, age 31 years | |||
| Derk Zijlstra Married to: Children: 1. Alberdina Immerencia Gebina ZijlstraBorn 31 Mar 1900 Leeuwarden 2. Hendericus Theodorus ZijlstraBorn 12 Feb 1902 Leeuwarden, died 5 Dec 1933 Mönchengladbach, age 31 years | |||