I have a copy of “The Underground Railroad in Dupage County, Illinois” by Glennette Tilley Turner, which I would like to get back in the hands of descendants or family members of an ancestor written about in the book. Dupage County was prominent in the Underground Railroad in northern Illinois. There are mentions of Thomas Filer who was an ardent abolitionist, and of his home, in which slaves were housed. Please email me at margerice@prodigy.net.