Map of New Castle County, Delaware, from Original Surveys, Saml. M. Rea & Jacob Price. Published by Smith & Wisar, No. 15, Minor St., Philadelphia. 1849. (inset) Plan of the City of Wilmington. Compiled from Surveys by G.R. Riddle, C.E. 1847. Reduction by Rea & Price. Entered ... 1848 ... by Robert P. Smith.