º£½ÇÂÒÂ×

Hi
My Family are originally from Azerbaijan Baku . During the World War II , they were send towards Iran . They were separated  from their relatives . My grandparent always wanted to go back , but they Lost everything and they were ashamed to go back.

My grandparent Past away 15 years ago.My dad is 75 years old and he has asked me if I could find his cousins and his aunt's and all his  relative's.
All these information was revealed to me just recently . 

I will be very great full  if any one could put me in the right direction and what is the best place to start Looking .

Thanks
Best regards.

p.s
I am a UK resident and been living in UK over 35 years.