Richard Hess plead not guilty to all 10 counts of sex crimes against children including rape.
He is in jail under a 3 million dollar bond.
Hess was arrested a week ago for the crimes.
Assistant Prosecutor Helen Yonak says Hess victimized children he babysat for the past 31 years.
She says the victims, all girls, ranged in age from 4 to 14.
Next court date is pending.