Klaas Roskam
| Family | Pedigree | Reports |
| Klaas Roskam |
| b. |
| d. |
| Hannes Cornelisz Roskam |
| b. |
| d. aft 1862 |
| Sijbregt Kater |
| b. abt 1817 |
| d. aft 1862 |
| Cornelis Roskam |
| b. |
| d. |
| Willempje Maatjes |
| b. |
| d. |
| Klaas Cornelis Kater |
| b. |
| d. |
| Klaasje de Boer |
| b. |
| d. |
| Family | Pedigree | Reports |
| Klaas Roskam |
| b. |
| d. |
| Hannes Cornelisz Roskam |
| b. |
| d. aft 1862 |
| Sijbregt Kater |
| b. abt 1817 |
| d. aft 1862 |
| Cornelis Roskam |
| b. |
| d. |
| Willempje Maatjes |
| b. |
| d. |
| Klaas Cornelis Kater |
| b. |
| d. |
| Klaasje de Boer |
| b. |
| d. |