Which Esther?

A photograph of the grave of one of three Esther Herszenkrugs that I am aware of. With a date of death of 1899, she can't be my father's cousin nor another Ester Ackermann (née Herszenkrug) who perished in Backa Topola, Yugoslavia at the age of 46 during World War 2. I am trying to establish how they were all related to one another.

Ester's grave