I have been looking for information about family members with last name Finkelstein who lived in Galati around 1890.
My great grandfather lived around that time there and then emigrated to Bulgaria. But his sister (he might have had other siblings) remained in Galati, as far as I know. They arrived in Galati from Vienna or nearby Vienna before that.
The sister may have married and changed her name so this may be a dead end but this is all I know.
If you have any information that matches this, please, let me know.