Hi, you need to contact the genealogy library of the White County Historical Society, email@example.com, or via phone 618-382-8425 from tues-fri and have Diane or Lecta do research for you. Sometimes the probate boxes have good information, sometimes not so much. I'm not sure if you are looking at the list of probates on the usgenweb site or another source. There should also be some files on the Cunningham and Silliman surnames, maybe Rogets. They used to charge $10 an hour plus copying, it might be a little more now.