Rozalyn,
I'm sorry, but there is nothing I can really tell you. Idaho is a closed adoption state. They do have a registry that you can sign up for (I think it cost $10.00), but I found that useless because in my opinion it is geared more toward current adoptions (say, the last 20 years). The only tid bits of information I was able to get was from the adoption agency and most of that information was whited out (the stuff you want to know). I considered petitioning the court to open the records, but that would require an attorney which means spending some money and your chances of getting them opened is slim.
Katie