Thompson, Gilbert 1839-1909 creator mixed material monographic eng 1 1 0.2 Journal (1861-1864) of Thompson's Civil War experiences in Maryland, Virginia, and Washington, D.C., while serving as a topographical engineer in the Engineer Battalion, U.S. Army of the Potomac. Includes later reminiscences; description of bridges, armaments, and firearms; and sketches and photographs of army officers, battle sites, etc. Includes correspondence, laid in, of Nathaniel Prentiss Banks. Open to research. Union soldier and topographical engineer. Collection material in English. List of illustrations available in the Library of Congress Manuscript Reading Room. Banks, Nathaniel Prentiss 1816-1894 Correspondence United States. Army Officers United States. Army of the Potomac. Engineer Battalion. Bridges Military weapons Maryland History Civil War, 1861-1865 United States History Civil War, 1861-1865 Battlefields United States History Civil War, 1861-1865 Engineering and construction Virginia History Civil War, 1861-1865 Washington (D.C.) History Civil War, 1861-1865 Engineers Soldiers mm 81095752 Open to research. DLC 810512 20260227111710.0 mm 81095752