This being a genealogy site and living persons being protected along with those from the nuclear family, this may not be a valid or helpful way to pursue your needs. You have listed his profile and so someone may look at it to see if they are a match but for many reasons family may not even wish to connect to such a profile. Because most things are unknown or privacy protected. Your better bet may be to place a ' classified' on the queries boards with a private email for in case someone wants to connect. There may even be websites set up for those searches. If your purpose is only for genealogy then it may be believed that that is your purpose, but no one may respond because of other motives which may or not be relevant to your case. If your son is a minor then maybe your option would be to put a little in the bio about the father such as a timeline that is not traceable by others but the father would recognize... i am sorry that since you are making a statement rather than asking a question it cannot be answered more specifically.