Just learned that more of my 4th-gr-grandmother's siblings moved to Greene Co IL and was looking through the messages when I happen to find yours.
Don't know if you ever got any help on the Gillick family, but you may have another brick wall to tackle.
If my recent research on the Coonrod family is correct Nancy Etna Coonrod was not the daughter of Stephen Newport Coonrod and Candis Lee. Stephen and Candis did have a daughter Nancy Ann (b 18 Feb 1841) who married James Washington Rice. This marriage ended with the death of James in 1901.
There was a Stephen N Coonrod who I suspect is the Stephen Newport Coonrod you are looking for. He probably was a son of the Stephen Coonrod who married Candis Lee as their son Stephen was Stephen M and he married Betty Chilton. According to the IL marriage index Stephen N Coonrod married Angeline Grizzell on 11 Feb 1858. With the marriage date you gave for Hugh and Nancy, I suspect that your Nancy Etna's parents are Stephen and Angeline.
Debbi Geer