Mariages
Commune/Paroisse : Saint-Jean-De-Marsacq [Landes] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | DUCAMP | 1858-1920 | 2 | 2 |
| 2. | DUCAMPS | 1888 | 1 | - |
| 3. | DUCAN | 1669 | - | 1 |
| 4. | DUCARME | 1711-1783 | - | 2 |
| 5. | DUCASOU | 1696 | 1 | - |
| 6. | DUCASSE | 1711-1903 | 7 | 10 |
| 7. | DUCASSOU | 1661-1708 | - | 3 |
| 8. | DUCASSOU (S) | 1765 | - | 1 |
| 9. | DUCASSOUS | 1718 | - | 1 |
| 10. | DUCAZAU | 1844 | 1 | - |
| 11. | DUCLOS | 1721-1936 | 20 | 24 |
| 12. | DUCLOS ? | 1799 | - | 1 |
| 13. | DUCOUT | 1662-1670 | - | 2 |