History of the Pennsylvania Reserve Corps: A Complete Record of the Organization, and of the Different Companies, Regiments, and Brigades - J. R. Sypher. The Corps, formed May 15, 1861, was dispatched for the first time when called upon the following June to defend Pennsylvania from rebels invading from the south. Then the Battle of Bull Run changed the fate of the Corps: the Union defeat in that battle on July 21st meant that the Union Army needed reinforcements badly, and the men who had sworn to protect their state now were needed to fight for their country. The next day, over 15,000 men of the Pennsylvania Reserve Corps joined the forces of the Army of the Potomac. This work chronicles the development of the war and the role of the Pennsylvania men who fought for the Union. The evolution of battles, such as the second Battle of Bull Run, Antietam, and Gettysburg, are traced, and sketches of the men who participated (whether by planning strategy or fighting on the battlefield) provide insight into the men who fought. One-quarter of the book is dedicated to regimental rolls and individual records, which provide valuable information about individual soldiers. The regimental information provided by the rolls includes who commanded the regiment and its companies, the date the regiment entered into service, and the date it was mustered out of service. The members of the regiment are listed by last name, and a helpful key indicates not only when a soldier was promoted, discharged, reenlisted, wounded, or killed, among other things, but also the battle in which it occurred, if known. The index references the full names of people found in the text, and surnames of those listed in the muster rolls. (1864, 1991), 2012, 5½x8½, paper, index, 806 pp.