Material dates almost exclusively from the American Civil War. The collection contains correspondence received by Colonel Flad between 1861 and 1864, and in the later 1800s while he was trying to recover his pension. It has promotion notices, and muster rolls . There are notes, army passes, some sketches and maps, and password notices throughout the collection. Also included in this collection are copies of Flad’s service records from the government, including his marriage records, and death records. These items are arranged first by folder size, with smaller folders bearing earlier folder numbers, and then by date, with information of an earlier date bearing earlier folder numbers. Biographical information and photographs are in folders 1 and 2.