Are you aware of the 1982 History of Logan County, Illinois? It has family histories for two families named Hickey. I will summarize a little below. If any of this clicks, send me an address and I will be happy to copy the pages for you. James Hickey (b 6-6-1922)descended from a Willian Hickey, born in Tipperary, Ireland in 1827, and renting land from William Scully in Sheridan township. James was son of Emmett, grandson of James, and great grandson of William. He is reported to be curator of the Lincoln Collection in the Illinois State Historical Library. The other is Josephine Hickey (b 6-10-1894), daughter of James H. and Mary Rourke Hickey and wife of Alfred Wacaser. James H. (b. 5-2-1851 in Staunton, VA. )was a son of John and Ellen Hickey, who came from Tipperary, Ireland. Josephine had a brother named John, according to this report.