Contact Kim Crouley at the Jacksonville, North Carolina Main Branch Library (Genealogy and research department). She maintains a great deal of local information. You can google the library and get her telephone number.
Also, you could try the New Hanover County library (Local History department). Google that too. Ask for Beverly Tetterton, I think she still works there.
Another avenue that you may look into is searching for "quarriteen (spelling) homes" This is were sick people were secluded, sometimes for years. There were numerous of these homes throughout Onslow County.