This book is one of the good things that came out of the Depression. To get people to work, the goverment (as in FDR) sent people around to gather oral history and folklore. Its one of the reasons that we have some of Zora Neale Hurston's work (her folklore collections). These workers collected Slave narratives. This free kindle work are some of the interviews from North Carolina.
They are transcribe here in dialect, so the spelling is non-standard. This might be off putting to some, but reading these collections are important. Not only because of the voices they record, but because they are truthful response to those who say things like "the slaves that built the White House were at least fed".
And now, with the rise of digital media, there is no excuse not to read them.(less) 
Part of Civil War Summer Read