I have posted the results of my research for the benefit of others seeking information about their ancestors and/or my approach to such matters. All the material, except those from archives, is copyrighted by either Eliane Herz-Fischler or Roger Herz-Fischler; see the back of the title pages. Commercial use is strictly forbidden. See also the possible restrictions on the use of archival material.
This is the system used in the second and third books:
A system for clearly identifying ancestors in an ascending tree
Identification of documents from les Archives du Bas-Rhin
Abbreviations
The documents HTML page
Corrections & additions_[2025.12]
Who was who in Dauendorf; new material
The Weyls & Guggenheims_[2025.12]; revised text
Another Look at Madle and [Madel Guggenheim], pp. 112-123  [2024.04]
A Further Look at Madle and [Madel Guggenheim], pp. 112-123   [2025.12]
Tombstones, Marriages, Graphs, Miscellany, Madel Related Material
You can download all the new and revised material by clicking on
this link to the zip file.
The documents for A Triple Love Story
Letters and postcards from four different groups, sent before and during WWII. Of all the writers only one survived; not all stories have a happy ending.