I can't say I'm a big fan, but a few years back I was in Peoria (2 of our kids went to school there), and there was a small festival/lunch deal in the downtown park, and someone was doing a Dan Fogelberg tribute. So I learned that he was a Peoria native.
Later, I was listening to a folk music program on WFMT, and they mentioned the connection between Fogelberg, and the folk group "The Ship". "The Ship" played around Champaign-Urbana when my brother was in school there, and I knew of them.
Later, I found the entire album on youtube - it's really very good, sort of a folk-opera in a way, as it is a concept album with a story connecting all the songs.