looking for daughter

I am looking for my daughter that i never knew. She was giving up for adoption with out my knowledge. Her mother and i were young. She was born in missouri. I was told by her mother this is her birthday march 17,1990. that would make her 21. I think she still lives in missouri. I would love to find her and let her know that i am here for her. Also let her know about her family that lives in Germany. She has a long family history on my side of the family. I just want to get to know her. Please if you are out there let me know.....