The very helpful lady of the archives where the registration of inhabitants of Loosdrecht is situated could not guarantee an answer today. They are open to the public on mondays and tuesdays, wednesdays and thursdays are for providing service for requests by phone or email. If she can not make it today, she will find out on monday and answer my email then.
So now it is just a matter of waiting, unless Johanna M moved to another place of course.....
As for my appointment with the doctor, I will get surgery within the next 3 or 4 weeks. They will let me know anyday now when.