It is Joel Levy’s conjecture that Harry Hoberman (who is pictured standing in the back of this Zimmerman family picture) and he was the son of one of Esther Zimmerman’s older sisters to escape the Czar. Thus he called Esther “Tante” because she was in fact his aunt, so all the younger children followed suit. This also explains that Leonard Levy and Joan Horton believe they are cousins to each other.

In this senario, this older sister could be Chiaka, Tibel or neither.72

Nancy Golberg confirms the conjecture saying the sister is Chaika. Harry was the son of Chaika Rudevitsky, who married Israel Hoberman in Europe.  My information came from my mother, who got it from Priva Rosovsky Alper in the 1970s.  I grew up knowing Priva, who was very sharp and had a good memory for family history, so I feel pretty confident about what she said.  Unfortunately, I never asked her much about the generations in Europe.96,91