Our research, our book "Van Goghs Ohr" (2008) and this website would not have been possible without the support of so many dear people.

First of all, we thank our families for their patience and their encouragement during the long years of our work on this project. In particular we are grateful to our sons Felix Kaufmann for his help with translation problems and to Jan Wildegans for the creation of this website.

During our research work in archives, libraries, and museums we have received broad support and friendly, patient, honest and professional assistence by the staff of the following institutions:


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