finding my father

You might try zabasearch.com. It seems to be the favored site of adoptees looking for family.

I can understand that you want to find him and learn about him but are you really sure that your wedding day is the right time to do it?

So many "finding" stories end in disappointment. Be really, really sure you'll be able to handle all the extra emotion on such a big day. How does your spouse-to-be feel about all this? How does your mom feel about all this?