The address for the Lake County IL Genealogical Society is: PO. Box 721, Libertyville, IL, 60048-0721. Write to them and ask for an application blank. There is a list of their publications that are for sale. You can get a price list for these from: D. Dolph, 134 E. Goodwin Pl., Mundelein, IL 60060-1806. Hope this helps.