My great grandmother was Braindel or Braine in Poland
and took the name Bertha in the US.
I have Ukrainian Claras as well-- one was named Chike
and the other Chaike when they came to the US.
Another possibility for Bertha is Brana or Brane.
Researching the names; SPECTER; PAWLOCKY OR POVLOTSKY;
PERCZINKE; YAMPOLSKY; KAMINSKY OR CRASUNSKY