{geni:about_me} Birth year per genteam.at Index of the Jewish Records of Vienna

Birthdate (full) per list of those with Austrian bank accounts at time of the Holocaust @ www.avotaynu.com:
* Mendl, Ernst 07.08.1896 (Aug 7 1896)
* Mendl, Gertrud 19.12.1899 (Dec 19 1899)

Birth record:
https://familysearch.org/pal:/MM9.3.1/TH-1961-2580...,344618001,344921901