Babcock, John C. 1836- creator mixed material monographic eng 60 1 Principally correspondence (1855-1865, 1902-1908) relating to Babcock's service in the military intelligence bureau of the Army of the Potomac. Correspondents include Winfield Scott Hancock, Theodore Lyman, George Gordon Meade, Marsena Rudolph Patrick, William A. Pinkerton, and Henry Augustus Sharpe. Open to research. Army officer and architect. Collection material in English. Hancock, Winfield Scott 1824-1886 Correspondence Lyman, Theodore 1833-1897 Correspondence Meade, George Gordon 1815-1872 Correspondence Patrick, Marsena Rudolph 1811-1888 Correspondence Pinkerton, William A. (William Allan) 1846-1923 Correspondence Sharpe, Henry Augustus 1848-1919 Correspondence United States. Army of the Potomac. Military intelligence Architects Army officers mm 78055699 Open to research. DLC 780918 20260227111627.0 mm 78055699