How to locate a "possible" son

Thank you Jensboys. That looks like a good link you provided. There is a ton of links inside it ..... do you think of of those would be able to answer if this adoption even took place? Was the child mine? Etc. You said i couldn't apply until her was 19. I've never done this before and don't understand. Apply for what? His information about where he lives or whatever? Thanks.