 Geertje (van) Duijn, daughter of Pieter van Duijn and Maartje Vlieland.Born Katwijk aan Zee, baptised 12 May 1737 Katwijk aan Zee Marriage notice 17 Apr 1761 Burgh. to:  Marinus Dijkgraaf, son of Jacob Dijkgraaf and Hendrina van Gassel (van Gastel).Born ± 1736 Ouwerkerk Children: 1. Jacob DijkgraafBorn 05 Mar 1762 Burgh, baptised 20 Mar 1762 Burgh. Occupation: arbeider 2. Maatje DijkgraafBorn 15 Dec 1763 Burgh, baptised 18 Dec 1763 Burgh 3. Pieter DijkgraafBaptised 26 Jan 1766 Burgh, died ± 1766 Burgh, approximately 1 years 4. Pieter DijkgraafBaptised 14 Jun 1767 Burgh | |||