Never heard of it, but a quick web search yields that this is a recent (2010) hardcover publication from Louisiana State University Press.
Here is Larson's bio:
R. A. Lawson (Ph.D., Vanderbilt, 2003) is a historian of American culture whose new book, Jim Crow?s Counterculture: The Blues and African Americans, 1890-1945 is available from LSU Press. His retrospective on the field of blues scholarship, ?The First Century of Blues: One Hundred years of Hearing and Interpreting the Music and Musicians,? has appeared in the journal, Southern Cultures. Lawson is Associate Professor of History at Dean College (Franklin, MA) and Visiting Associate Professor of Graduate Studies at Trinity College (Hartford, CT).
He also had a chapter in David Evan's 2008 Ramblin' on My Mind: New Perspectives on the Blues, which may well be the article referenced above.
