| 1. Jan Koops Mast |
 |
| B: |
13 Aug 1792 |
| P: |
Middelburg, ZL, NLD |
| D: |
02 May 1836 |
| P: |
Oosterzee, Lemsterland, FR, NLD |
|
| 2. Koop Jochems Mast |
|
| B: |
09 Dec 1768 |
| P: |
Giethoorn, OV, NLD |
| M: |
13 Dec 1791 |
| P: |
Langezwaag, Opsterland, FR, NLD |
| D: |
11 Mar 1833 |
| P: |
Lemmer, Lemsterland, FR, NLD |
|
| 4. Jochem Koops Mast |
|
| B: |
1749 |
| P: |
Giethoorn, OV, NLD |
| M: |
16 Oct 1768 |
| P: |
Giethoorn, OV, NLD |
| D: |
13 Jun 1824 |
| P: |
Opsterland, FR, NLD |
|
| 8. Koop Jochems Mast |
=> |
|
| B: |
1716 |
| P: |
Giethoorn, OV, NLD |
| M: |
21 Oct 1741 |
| P: |
Giethoorn, OV, NLD |
| D: |
1797 |
| P: |
Oudehaske, Haskerland, FR, NLD |
|
1792 - 1836 (43 years)