I am in the midst of developing an extended family tree. The info I have may be tied somehow to your tree.
My Great Grandfather was from Munkatz, Chekosylvakia. His name was Joseph Greenstein (born abt 1862) and he had several children (unknown total) with names that include Isadore (Lewis)- my grandfather, Mary, Rose, Jacob, Sadie and Yolan. They all were from the NY, RI adn Boston areas.
If any of this ties to your info please let me know.