Here’s one report found in the ORs.
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OLNEY, ILL., July 22, 1863.
Acting Assistant Provost-Marshal-General for Illinois:
A body of 200 to 500 men came within half a mile of our town last night to destroy enrollments. The papers were all secured and the raid stopped for a time. Rumors came in frequently of further danger. Captain O"Kean gone to Franklin. We send messenger by train to-day.
OR Series III, Vol.III, p. 560