Dear Robert & Margaret:
After I read your post,I´ve been looking for information, and this is what I get: Esther lives in Buenos Aires with her sister (Dolores). A few days ago I spoke with someone who knows them, and she gave me their address and phone number.
I did not want to call them until I talk to you. When I get some news, I´ll let you know.
P.D.(or P.S.): Robert, I found Nilo (Nilo Nereo Zuloaga Ferreyra). dont know if you can access mi tree.