Dear Cole 2nd March 2021
First of all, I wish you success, to be able to discover your biological parents and connect with them, their descendants , if any.
Sadly you are not alone, who have no alternative but to navigate this extremely sensitive journey.
I wonder, may I politely suggest to research not only the family name White, but Weisz/Weiss as well.
I am aware many Weisz/Weiss families changed their surname to White.
Also, I came across often Iren--the Jewish name is Rifka
As for Estelle,( La May) I wonder, it might be Esther--I call my grand-daughter, Esty--Estelle etc.
Please try to allocate time and check not only secular but Jewish Synagogue--birth marriage death--cemetery records
Best wishes and good luck