Ing. Ignaz Ignatz Hüscher

Information courtesy of various sources, including the following:

N.B. Not 100% sure but looks very likely that this Ignaz HÜSCHER (of unusual surname) married and had a son in Vienna. ...

These presumed three brothers feature as sole individuals surnamed HÜSCHER living in Vienna in 1938:
Wienbibliothek / Retrodigitalisierung / 1938 [526]

https://www.digital.wienbibliothek.at/wbrobv/periodical/pageview/26...

HÜSCHER Heinz Dr., Vertreter, IX Servitengasse 4

HÜSCHER Ignaz, Ing. Holzagent, III Löwengasse 49

HÜSCHER Sigmund Dr. Privat Angestellter, VII Westbahnstrasse 56-58, Stg.1

cf. his name as contact person on departure in New York passenger listing of "brother" Heinrich HÜSCHER.

It is not yet clear what happened to Ignatz. He may have died after fleeing from Vienna - in France or England?