Dear Sir,
You may want to read the books:
"War at Every Door: Partisan Politics & Guerrilla Violenace in East Tennessee 1860-1869" by Noel C. Fisher, U of NC Press, 1997.
"Mountain Rebels: East Tennessee Confederates and the Civil War, 1860-1870" by W. Todd Groce, UT Press, 1999.
"Divided Loyalties" barely meets my standards for scholarly work on the subject. It it Knoxville centric and has several inaccuracies in it but a decent starting point. It has been recently reprinted with some (emphasised "some") corrections.
I think your statement "that made a majority of people in East Tennessee pro Union during the Civil War" is a leap and it would take some heavy scholarly research to prove otherwise. Heavily divided yes, majority no. Just the shear number of Confederate regiments versus Federal regiments that came from East Tennessee counties tilts that opinion.
I hope this helps.
Respectfully,
Gerald D. Hodge, Jr.
Niota, Tennessee
War Between the States Historian
Historian: 39th Georgia Volunteer Infantry Regiment
http://39thgavolinfrgt.homestead.com/39thHomepage.html