Isaac Shinn's mother found.

I have recently come across the will of Elizabeth Shinn, of Vincentown NJ.  In her will she names her natural son, Isaac Shinn of Philadelphia.  She also names Allen Shinn, son of her brother Samuel Shinn.  Samuel is probably her brother-in-law and not her actual brother.

The witnesses to her will were Isaac Hilliard, William Dobbins, and Thomas Doron (or Doren). 

I am thinking that the clue to her maiden name may lie in the names of the witnesses.  I will post updates as they become available.