I saw this on the North Carolina Digital Collections and it looks like it is completely available online now – https://digital.ncdcr.gov/digital/custom/african-american-education. There are restrictions to some of the records if you plan on doing something commercial with them. Each item in the various collections spells out what restrictions apply to the item.
About this collection
This collection contains documents and photographs related to African American education in North Carolina before 1950 drawn from the collections of the Charlotte Hawkins Brown Museum and the State Archives of North Carolina.
Currently the digital collection includes selected photographs and other materials from the Charlotte Hawkins Brown Museum, a Historic Site within the North Carolina Department of Natural and Cultural Resources. These materials were provided for research and educational purposes; prior permission from the Charlotte Hawkins Brown Museum is required for any commercial use. Yearbooks from the Charlotte Hawkins Brown Museum are available online from the North Carolina Digital Heritage Center.
For more information about African American education in North Carolina, consult the online catalog of the State Archives of North Carolina and the online encyclopedia NCPedia.https://digital.ncdcr.gov/digital/custom/african-american-education