My maternal grandmother, Eleanore Barbara Twarowski (1918-1999), and her clan lived in and around Newark, NJ. The start of that clan was her father, Joseph Twarowski (1887-1957), who emigrated from Poland in 1910. I do not know who his parents are, and he hasn't appeared in any "Member Connect" trees.
So, I'm looking for ancestry there.
Does anyone have recommendations on how to follow the tree back to Poland (or Galicia/Austria/Russia or whatever it might have been at any given time)?