International Soundex Reunion Registry
is a mutual registry, but without all the red tape. Even if you register with the State, you should also register with ISRR. Everyone involved in adoption should have this address:
International Soundex Reunion Registry (ISRR)
Carson City, NV 89702
Free form, and registration. This is a non-profit organization, donations accepted to help the cause. Send a few dollars if you can. Any member of the birth or adopting family can register, many register only the birthdate, gender, and general location, they do the best they can, and they have trained staff available as necessary.