Bob,

Check at the Abraham Lincoln Library in Springfield Illinois as they hold all Illinois Civil War era newspapers. Someone who works there has gone through them all and indexed soldier letters by unit, date and newspaper. These are not online - these can only be found in their index card file and then you request the proper newspaper to fond the letter.

I have been through several of the unit files there for research projects and have found amazing stuff in these newspapers that has never been published before.

Greg Biggs