Illinois Civil War Muster and Descriptive Rolls Database (Illinois State Archives):
Wadsworth, John G. - Pvt - Co D - 4 IL US CAV
Join, 25Aug1861 - Joliet, IL; Age 34
On Detached Service
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):
Will County Illinois USGenWeb Necrologist Reports (© 2002 The ILGenWeb Project All Rights Reserved):
Headstone Reading,Published Obituaries:
Additional Biographical Material: