I received a Death Certificate from Piatt county, Illinois for a William Williamson born 2-29-1848....Covington co., Kentucky, died August 24, 1917, Sangamon twnshp., Piatt co., Illinois. I am not too sure this belongs to MY William Frank Williamson who married first Rebecca Mooney and after her death to Harriett Harvell in Piatt co The death certificate does not mention either wife's name. I was under the impression that MY William Frank Williamson was born in Ohio in 1840. The informatnt is listed as a Mrs. Edith Hart of Clinton, DeWitt co., Illinois. This name is not familiar to me. Can anyone shed any light on these names. Does anyone have any suggestions on what to do next, Piatt co. says this is the only death certificate they have under this name. Thanks for any clues, Marie