I forgot to recommend two books for you to read.

"This Astounding Close: The Road to Bennett Place" by Mark L. Bradley.

"Homeward Bound: The Demobilization of the Union and Confederate Armies: 1865-1866" by William B. Holberton.

This will give you some background on this period of the war.

Respectfully,

Gerald D. Hodge, Jr.
M.A. Military History - Civl War Concentration
War Between the States Historian
Research - Preservation
Historian: 39th Georgia Volunteer Infantry Regiment