- CSPI : Jeremiah A. Spillard: Manuscripts
- CSPI 1/01 Folder : Correspondence concerning the biography of the 58th Illinois Infantry 1894-1902
- CSPI 1/02 Folder : Material used for the biography of the 58th Illinois Infantry
- CSPI 1/03 Folder : Newsclipping- the death of William F. Lynch c1942
- CSPI 1/04 Folder : Letter from W.J. Spillard to T.T. McAvoy
- CSPI 1/05 Folder : Biography of the 58th Illinois Infantry (rough draft- handwritten)
- CSPI 1/06 Folder : Biography of the 58th Illinois Infantry (rough draft- typed)
- CSPI 2/01 Folder : "History of the 58th Regt. Illinois Infantry Volunteers- From Sept., 1861 to April, 1866" by Jeremiah A. Spillard (final draft- handwritten original)
- CSPI 2/02 Folder : "History of the 58th Regt. Illinois Infantry Volunteers- From Sept., 1861 to April, 1866" by Jeremiah A. Spillard (final typewritten ms.)