Included in this guide is information about research resources on immigrants and refugees in the Triangle. I would recommend keeping a research journal of keywords, names of individuals, and names of groups that you find helpful as you search the resources so you can use them to scope your search strategies.
There are many local organizations with a history of providing for immigrants and refugees in North Carolina. Here are just a few. They do not provide archival information on their websites. Contacting them directly would be one way to learn more about their histories.