The 36th Illinois fought in many battles including Pea Ridge, Perryville, Stone River, Chickamauga, Mission Ridge, Resaca, Adairsville, Dallas, Kenesaw, Atlanta, Franklin, and Nashville. Made of painted silk, this flag was brought back to Springfield after the war.
The flag was professionally conserved from 2008-2009 with intensive cleaning and precise repair of the fabric. The restoration was made possible by generous efforts of the Illinois State Military Museum, The Illinois National Guard, the DuPage County Historical Museum, Illinois Sons of Union Veterans of the Civil War Camps 1 and 2, The Civil War Roundtable of Chicago, The Salt Creek Civil War Roundtable, the McCormick Foundation, and many individuals.
The National Colors will remain at the DuPage County Historical Museum through February 2024, on loan from the Illinois State Military Museum.