How to contact a person who lives in Havana City, Havana Cuba?

Question

The person I am looking for's name is CARLOS GREGORIO BLANCO PURON, actually is retired, his age (approx) is 65 to 67 years old. He worked as a Phisics Professor in the MINISTERIO DE EDUCACION SUPERIOR, Vedado, Havana City, Havana, Cuba the last adresses that I know from him was a place in HavanaCity, Cuba, named Palatino, but too many years pased from that adress, He has at last two dauthers, and probleby is married toa person named Gloria. I really apreciatte any information that you can give me.

Thanks, friends

Teresa Hernandez

[e-mail]

tnayavega@verizon. net