Friend of Adoptee born 5/16/79 in Peoria looking for birth mother

I am a friend of the adoptee, and I'm trying to help find her birth mother. Birth father denied paternity. Adoptee was born in Peoria, Illinois at St. Francis hospital on May 16th, 1979. Catholic Social Services handled her adoption. Birth mother was 16 at the time of her birth and my friend was about 2 months old at the time of adoption. Reed was BM last name. Apparently there was an unwed mother's home there around this time, so birth mother may not have been from the Peoria area.Please email robin.isawesome27@gmail.com if you have any info. Thank you :)