I understand your problem now. And you do have a problem. Things might have changed in
the family, if it has been a number of years. Do you believe that the child wants to meet the father ?
You could look for a web-site, message board for the town and write something there.
I wouldn't use names if I were you.
Try something like this: Dominican father looking for ten year old daughter.
Then hope that the mother or a friend finds the post before the daughter does.