we are in fact Jewish by my mother's Great or Great Great Grandmother
This is getting silly. So you want to claim Jewishness because you 'might' have 1/8 Jewish genes? Even that doesn't count if your line was not continually matriarchal.
Could my ancestors have been holocaust survivors?
You seem unaware that approximately 3 million non Jewish Poles died during almost 6 years of Nazi rule. That too was a holocaust for all those innocent victims.
What were the lives of my female ancestors like and how may that have shaped who I am or am not today.
You don't think that your male ancestors had any role in shaping who you are today?
Some people just find their own ancestry more interesting and enriching than others.
You might want to study your Polish roots. You might be surprised.