The DeLong House was added to the National Register of Historic Places in 1984. In the years since, the Chapman Museum has added an exhibition gallery, climate controlled collections storage, a research room, multi-purpose classroom, and a museum shop.
In 1984, the DeLong House was recognized as historically significant and added to the National Register of Historic Places. Since then, the Chapman Museum has expanded its offerings by adding an exhibition gallery, climate-controlled storage for collections, a research room, a multi-purpose classroom, and a museum shop.