In the state of Iowa if the childs name was changed at the time of the adoption the origional birth cert. with the name the childs parents gave him goes to the Iowa department of health where it is sealed. If the childs name was not changed there is a really good chance that it will be listed in the county courthouse where the birth took place. email me direct if you have any further questions I will be happy to help we are also searching for my husbands parents from Iowa. ksab@bevcomm.net