Fascinating Photo Anthology - Photographer Credits Listed Below With Links
Song: The Delta by Dhruva Aliman http://dhruvaaliman.bandcamp.com/album/road-of-fortunes
http://www.dhruvaaliman.com/
Spotify - https://open.spotify.com/artist/5XiFCr9iBKE6Cupltgnlet


Photographers are...

Marion Post Wolcott
https://en.wikipedia.org/wiki/Marion_Post_Wolcott

Dorothea Lange
http://www.shorpy.com/dorothea-lange-photographs

Bill Steber
http://www.steberphoto.com/

Eyd Kazery
http://eydkazery.com/index.html

Baldwin Lee
http://baldwinlee.com/

Pirkle Jones
http://lumieregallery.net/wp/242/pirkle-jones/

H. Tees
https://commons.wikimedia.org/wiki/File:Cotton_planter_and_pickers1908.jpg

Ken Light
http://www.kenlight.com/

Birney Imes
http://www.jacksonfineart.com/Birney-Imes.html

Florence West Huffman
http://www.abebooks.co.uk/Ten-Point-Deer-Camp-Mississippi-Delta/14869127995/bd

John Work
http://archive.boston.com/ae/books/articles/2008/11/30/how_blue_can_you_get/

Jack Delano
http://www.shorpy.com/jack-delano-photos

Bob Fletcher
http://bobfletcher.photoshelter.com/gallery-list

Maude Schuyler Clay
http://www.maudeclay.com/

Margo Cooper
http://www.margocooper.com/

Renee Lowery
http://reneeloweryphotography.com/

Kallie North
http://www.deltabohemian.com/duck-hunting-kallie-north-mississippi-delta/

Alfred Eisenstaedt
https://en.wikipedia.org/wiki/Alfred_Eisenstaedt

Tamio Wakayama
http://www.discovernikkei.org/en/interviews/profiles/165/

Arthur Rothstein
http://argenteditions.com/descendants-former-slaves-the-pettway-plantation-p-4.html#.V0jgM2Zf9aU
Pavel Voinov

Brandon Thibodeaux
http://www.brandonthibodeaux.com/

Some photo's authorships could not be determined...

Mississippi Delta blues (also called "Delta blues") rose out of the fertile agricultural triangle located between Vicksburg, Mississippi to the south and Memphis, Tennessee to the north, and bordered by the Mississippi River to the west and the Yazoo River to the east. In this region, where cotton was the primary cash crop, much of the property was owned by white plantation owners and worked by black sharecroppers. Poverty was rife throughout the Delta, and working conditions were harsh.
Delta Blues Tradition

Traditional blues songs were handed down by word-of-mouth from one performer to another, and many times an artist would add new lyrics to an old song and make it their own. The guitar and the harmonica were the primary tool of the Delta bluesman, mostly due to the ease of carrying them around, and many of the musicians of the Early Blues era (1910-1950) were sharecroppers, or worked on one of the many plantations that were located across the Mississippi Delta.