Illinois Civil War Muster and Descriptive Rolls Database (Illinois State Archives):
American Civil War Soldiers (ancestry.com)
Civil War Soldiers & Sailors System Search Detail (National Park Service):
National Graves Registration Database (Sons of Union Veterans of the Civil War):
Shaffer, Paul - 100 Illinois Infantry
Died, 01Sep1879; Buried, Oakwood Cemetery, [Joliet] Will County, Illinois
Will County Illinois USGenWeb Necrologist Reports (© 2002 The ILGenWeb Project All Rights Reserved):
Headstone Reading, Oakwood Cemetery, Joliet, Illinois, Section 16:
Paul Shaefer 1822-1879
Dorethea, his wife, 1827-1884
Published Obituaries:
Additional Biographical Material: