voorouders van der Ploeg-Mosterman » Sources » http://noord-hollandsarchief.nl/bronnen/archieven?mivast=236&mizig=100&miadt=236&miaet=54&micode=23-438&minr=7958266&miview=ldt
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Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
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State from whom you have copied the data and ideally also his/her original source.