Many famous people are associated with these New Castle County historic places including Gunning Bedford Jr., Pierre S. III du Pont, Evans,Oliver, et al., Thomas Robinson and Benjamin F. Hanson.
Some of the country's most noteable architects helped create the New Castle County places including John E. & Sons Healy, James O. Betelle, Johan Rising, Edward Allen, US Army, James Mullens, Lewis Curtlett, Converse, Bernard & Harris, Philip T, Dennison & Hirons and George C. Sharp. Prominent architectural styles found in New Castle Country are Greek Revival, Italianate and Late Victorian.