In its report, the state said it was unlikely that a judge would grant a request to exhume the bodies, because there was no evidence of uninvestigated criminal conduct and because the exact location of each individual grave was unknown.
The men who are suing the school, now in their 60s, call themselves the "White House Boys," a name taken from the small, white cinder-block building where they say they were beaten repeatedly with a leather strap lined with sheet metal. Others say they were sexually abused while at the school.
Officials at the school and the state Department of Juvenile Justice have not disputed that some abuse took place and recently dedicated a memorial to the White House Boys.
"The beatings were ungodly. I thought they were going to kill me," Roger Kiser, who said he was sent to the reform school from an orphanage in late 1958, said in an earlier interview with ABC News. "They would beat you for anything."