Marc,

Try searching for a listing in old city directories for Morris Hershkowitz in Bucharest at: https://genealogyindexer.org/

You can limit search location to Bucharest.

I did a soundex search for Hershkowitz, which was not helpful.  But, a soundex search for Herschkowitz found many hits with variant spellings, i.e. Gerskowitz,
Herskovits, and others.

Regards,

Sherri Bobish
Princeton, NJ