I'll try to help you, but I need a little more information. It appears you may have Vol. 1 of the Roush books.The volume has almost no index to it, so unless I look through the whole several hundred pages, I cannot locate the information on John A. and Catherine (STRONG) ROUSH.
Richland Co, IL, is a hotbed for migrants from Meigs County, Ohio.I have several families out there.It took me 30 years to get out there, and I still didn't get all the research done I wanted.The GRAY, PRICE, FISHER, NEASE, CURTIS, and SALSER families went from this area to Richland Co, IL.I've never found a good reason for this mass migration.
Keith Ashley, National Historian Roush Family in America