I am back to asking for help from those who have been so kind to me. I am now searching for the marriage date of Ignatius Gerhardus Duffels to Joanna Haarlemans. It probably occured sometime in the 1790's. There first child was born on 7 Jul 1800 (at least I believe it was their first child). His parents were married in St. Lebuinuskerk in Deventer, so maybe he was also.
I also continue to search for the parents of Joanna Haarlemans. She was born <1764> in Heerde, Gelderland, Netherland. She died 04-12-1830 in Deventer.
I have tried sites online but have not had any luck. Thanks in advance for any help you can give me.