Delaware Atlas of Historical County Boundaries
John H. Long, Editor; Peggy Tuck Sinko, Associate Editor and Historical Compiler; Douglas Knox, Book Digitizing Director; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist and Digital Compiler; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant
Copyright The Newberry Library 2008
CHESTER (Pa.)
DEALE (see SUSSEX)
DURHAM (Md., extinct)
HOARKILL (see SUSSEX)
NEW AMSTEL (see NEW CASTLE)
SOMERSET (Md.)
ST. JONES (see KENT)
UPLAND (extinct)
WORCESTER (Md., original, extinct)