Investigators say 44 tombstones were destroyed or toppled at the St. Paul's United Church of Christ cemetery.
The church's staff says they are working to notify the affected families whose loved ones are buried there.
"The church had just gotten over and a lot of members came out to take a look and people were very, very upset," said cemetery board secretary Christi Holston. "These are grandparents and aunts and uncles... It's a small community so it hit very hard."
There was a similar incident last year at the same cemetery involving 11 headstones. St. Paul's is the only cemetery in Monee.