1. The Petersburg Campaign - Volume I: The Eastern Front Battles, June - August 1864 by Edwin C. Bearss with Bryce Suderow (Savas Beatie, 2012).
An collection of classic Bearss Petersburg articles (edited by Suderow, with maps by George Skoch), chapters cover the first two June attacks on Petersburg, Jerusalem Plank Road, the Crater, Weldon Railroad, and Second Ream's Station.
2. The 124th New York State Volunteers in the Civil War: A History and Roster by Charles J. LaRocca (McFarland, 2012).
The 124th -- the "Orange Blossoms" -- fought in the major eastern theater campaigns beginning with Fredericksburg in 1862. Using a large number of diaries and letter collections, LaRocca constructs a detailed regimental history and roster for the unit.