My work on the Gutteling & Bohemen families, and related families started a few years ago. The result to date can be viewed on one of the websites below. The database is updated regularly.
Both websites contain information of more than 24.000 individuals from Zeeland, Rotterdam, Vijfheerenlanden, Amsterdam, Groningen and other areas in the Netherlands.
The data contain transcripts of official birth, death or marriage certificates, where available (in Dutch), as well as some pictures.