A family member might have registered in hopes of finding him.Perhaps if you register, and if a family member also did, the IL Adoption Registery can help to put you in touch with each other. There is no fee to register with the IL Adoption Registry if you also fill out the Medical Information Exchange form, at the time of registry. http://www.idph.state.il.us/vital/iladoptreg.htmhttp://www.idph.state.il.us/vital/iladoptreg.htm The website states: "Is there a fee for registering with the Adoption Registry? Yes. There is a $40 filing fee. HOWEVER, THE FEE WILL BE WAIVED IF THE REGISTRANT COMPLETES the Medical Information Exchange Questionnaire at the time of the initial application and agrees to the release of the medical questionnaire to at least one other party to the adoption."