I want to update my membership information

If you want to submit changes to the association, you can do so by sending an email to

kassoren@g-gruppen.net with the following information:

  • Name
  • Address
  • E-mail address
  • Former e-mail address
  • (If you made a change to your e-mail address)
  • Telephone

Please provide supplementary information to the association about which family names, locations, areas, professions or other things that may be of interest or can be of interest to other members who research in the same fields.

By submitting your information to us, you agree to that we register these digitally in our membership register for internal use and communications to you. Your information will not be disclosed or sold to third parties.


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