At first, the Red Cross informed me that they did not recognize the town name, suggesting that perhaps this was in Poland. They further stated that Red Cross responsibility does not cover "Ancestry work."
Not one to give up right away (!) I e-mailed them back with a jpeg image of the Returned Envelope, and explained that I have living relatives who would like to make contact with other living relatives overseas. This is not just a "historical interest" for me.
I'm very excited to report a small breakthrough! On Monday December 6th, I received this information:
Dear Mrs. Chevalier,
We are pleased to advise you that thanks to the copy of the envelope we have been
able to clear the location of the village Jahubec, which is called in Ukrainian
language "Ягубець". It is really located in Ukraine, Cherkasskaya oblast,
Christinowsky rajon.
Taking inro account the above said we made a request (as an exception) to the local
authorities of this village to inform us if somebody from the family of Zvolanek is
still living there.
We'll advise about outcome of this request. While corresponding with us, plesase, cite
our case number 97061/15.
Sincerely,
Tracing specialist
Luidmila Obukhova