Good morning,
I think you are going to find it hard to resist doing the write-up.
Can you view this webpage?
https://www.jewishgen.org/Ukraine/GEO_town.asp?id=251You can find it on google maps as Kiblych. It had a Jewish population of 1,067 in 1900.
It's not as close to Odessa as Ernest thought, but it is the only match in the database of pre-war Jewish communities.
His sister Fania/Fay became a British naturalised citizen in 1940. Her place of birth would have been stated in her application, which is held at the National Archives in Kew.
I think there may have been a bit of embellishment going on here with the bit about the chemist. There is little to no chance that a Jewish girl born in Imperial Russia in the early 1880s received anything more than rudimentary education. Hers would have been the life portrayed in
Fiddler on the Roof.
Parts of Lee Batterman's
Kiblych, a novel of historical fiction set 1883(!!) can be read on google books. I quote from one page, "She had learned early how to sign her name in Russian, but that was all. She didn't go to the public school; she learned Yiddish and Hebrew from a teacher who came to her house. Most girls only learned to read and write Yiddish ..."
Ernest's parents, Barnet (b. 6 Aug 1880), travelling drapery salesman, and Clara (b. 18 Mar 1883) "unpaid domestic duties" were living at 66 Newport Road in Risca near Newport in 1939.
Do you know at what stage the family moved to Cardiff?