About R' Elijah (Eliezer Hirschel) Apter
Elijah (Eliezer Hirschel) Apter, died 1737.
He was the son of R' Zvi Hirsch, He married his first cousin, daughter of Samuel Katzenellenbogen and Reina.
Samuel was Parnas of the Posen community
Elijah was the progenitor of the Samuel family, which settled in London and Philadelphia (USA).
The Unbroken Chain - Neil Rosenstein (1990) Volume 1, Chapter 11, page 26, G 8.2