Here is a great starting point/resource for you. Contact Karen Amspacker from the Core Sound Waterfowl Museum & Heritage Center. I believe she's the Executive Director. Pam Morris also works at the museum and would be a great contact. Both of these ladies and all of their family are from the CoreSound/Shackleford Banks/Harker's Island area.
The museum is located at Shell Point on Harker's Island behind Barden's Inlet/Cape Lookout.
Core Sound Waterfowl Museum & Heritage Center
1785 Island Road
Harkers Island, NC 28531
(252) 728-1500
For some reason their website is down at the moment but here's the URL
www.coresound.com
Here's the Museum's Facebook page.
https://www.facebook.com/pages/Core-...r/108800729612
The museum is staffed by island born and bred folks. There's a good chance that some of their grandparents (Heck-Maybe parents!) were born and raised in Diamond City.
You may also want to contact Scott Taylor. Scott is a well known photographer that lives in Beaufort. He worked for Duke Marine Lab as a photographer for almost 20 years before setting up his own studio about 15 years ago. Here's his URL
http://www.scotttaylorphoto.com/
I just thought of another one. Katie Mosher with North Carolina Sea Grant. She's the Communications Director. I recall a publication NC Sea Grant put out about 15 years ago doing an aerial pictorial history of all NC inlets. Here's katie's contact info:
http://www.ncseagrant.org/component/content/article/41
I know all of these folks. All are super nice and will help you in any way they can.