[Civil War] [Military] Owned by a Union soldier, named "R. Whitcomb", and later picked up by a Confederate soldier, Capt Brooks, in the Battle of Bull Run - the first major battle of the Civil War. Civil War infantry handbook two volumes. Hardee, William J. Rifle and Light Infantry Tactics and U.S. Infantry Tactics, both published 1861, formed the core instructional manuals for Union infantry training during the opening phase of the American Civil War. Two volume set includes: [1] Rifle and Light Infantry Tactics; for the Exercise and Manoevres of Troops When Acting as Light Infantry or Riflemen. Prepared Under the Direction of the War Department, by Brevet Lieut.-Col. W. J. Hardee, U.S. Army. Volume I. Schools of the Soldier and Company; Instruction for Skirmishers. Philadelphia: J.B. Lippincott & Co. 1861. 32mo. 250 pages. Original brown boards with black spine with gilt title. Inscription on ink on front end-paper seeming to notate a code, with markings above the letters "A W F I C H K E G B". [2] U.S. Infantry Tactics for the Instruction, Exercise, and Manoeuvres of the United States Infantry, Including Infantry of Line, Light Infantry, and Riflemen. Prepared Under the Direction of the War Department, and Authorized and Adopted by the Secretary of War, May, 1 1861. Volume II. School of the Batallion. Philadelphia: J.B. Lippinscott & Co. 1861. 32mo. 232 pages. Original brown boards with black spine with gilt title and publisher. Stamped and inscribed on the front paste down in ink. Foldouts bear some creasing and tears. Wear to front hinge and back outer corners, chips to bottom of front and back boards. Volume two is stamped with original owner's name and title "R. Whitcomb--Co. I. 4th. Reg. P.M.M" and inscribed in ink underneath "Captured on the field of Battle July 21st 1861-- --Capt Brooks 2nd Reg. ---" The book was taken as a trophy of battle by Capt Brooks 2nd Reg after the Confederates' early victory at Bull Run. Folded frontispiece bears some creasing and tears. Significant wear to spine at top, bottom, and hinges, front board almost fully separated from spine at joint. Inner pages clear and legible with textblock tightly holding. A fascinating memento from the battlefields of the Civil War which passed through the hands of both Union and Confederate owners. Signed.