Terre,
Although she may have married try writing to these Bryne families, they may be related to her, if she had brothers or such. Stay in touch and I will see what other ways I can get info.. but thinking best way is to write letters and try Social Security.. they keep all the records from adoptions to births to name changes so they wil be able to foward a letter! hang in there I found my mother and only because I found a grandparent first... she married and name was changed.. stay in touch and write if you need me!!