I second the motion for you to do more research on the blues and the blues scale. The blues isn't as simple as the uninformed seem to think. Additional topics to think about are the "Blues scale" which is the minor pentatonic. The blues typically has "blue notes" which are flatted thirds, and sevenths and occaisional slightly flatted fourths. Additional scalar things to think about include the modern addition (thanks T-Bone Walker) of the second scale degree as a "ninth". The truly emerging Delta Blues before the war had many deviations and alterations from the standard European 'tempered'scale (as did Appalachain music). The inclusion of a few buzz words only in your writings will work against you.

Places to start are:
"Blues You Can Use" by John Ganapes, guitar method book Musicroom.com

History:
"Deep Blues" by Robert Palmer Amazon: Deep Blues

"Land Where The Blues Began" by Alan Lomax amazon: Land Where

Listening to understand the blues scale (and in terms of the stuff you're writing about): Son House, a classic great of the early period. Clearer than some and easier to start with. amazon: Delta Blues
Almost anything by Lightnin' Hopkins, true griot-poet of the blues.amazon: Lightnin'

having recommended all this I really must second the notion that you should find a blues player to ask questions of.