Tell me more about your father's family. Being from Illinois puts you very close to where my great grandfather and his brother settled in the 1850's.
My great grandfather was Charles Ormond who lived in Brookefield, Wisconsin. His brother was Doctor William Ormond who lived closer to the Milwaukee area. A nephew William Morgan Ormond also settled in that area for a time.
Chances are some of their children migrated into Illinois also. Let me know if any of these names are familier.