You can find a downloadable version of the complete collection of the WPA Slave Narratives at http://www.gutenberg.org/

To find the complete collection go to "Book Categories". On Book Categories, Scroll down the page, under "S" click "Slavery:Bookshelf"
The title of the collection is "Work Projects Administration". Books are sorted alphabetically.

http://www.gutenberg.org/browse/authors/u#a3906

Hope this helps those who want to read online.

SSC