The Society's headquarters are in the former Middletown Academy. The Academy had first opened in 1826 as a private institution, becoming part of the public scholl system in 1876. The building is now shared witht eh Middletown Chamber of Commerce.
NC-Chap is an organization devoted to researching the New Castle area and their website is an absolute treasure trove of great information.
The NCHS has three museums under its charge, The Amstel House, The Dutch House and The Old Library Museum.