I assume you have tried with the Iasi National Archives. The reason it may not have worked is that that Archive (for the largest - except Bucuresti -- Jewish community in the Old KIngdom) is not set up to do research — there are no index files and in my experience even when some office has an index Jews may have been entered using first names, and not the surname (which may not have even existed). So unless the exact DOB and the “real” surname (or patronymic) was used in the post emigration records, the Archive may not find any trace. A researcher may have to go over thousands of records with no guarantee anything will be found (as sometimes people indicate Iasi but the actual place may be a nearby place like Podu Iloaei or Targu Frumos). One suggestion is to ask the JG Romania admins — they do have the pictures of the civil records of Iasi for the 1890s and possibly could help…
