Tracing historical information
In the year 2000 I read a lot more about the history of the "van Nigtevecht" family maintained by someone in Weesp with the same family name. The information on this personal website seems lost. I read a lot of details here with reference to archives which I cannot trace on the web. It may be available within in old historical paper archives held by Dutch authorities and organisations.
We think the internet can give us correct information, but this depends on what has been transferred from the old paper archives and can be searched on. Converting it all is sheer impossible due to the enormous effort and excessive cost involved.