A 63-year-old former teacher accused of molesting two generations of his male students drew 20 years in prison and a $25,000 fine.

Douglas Marks, who was sentenced Wednesday, had pleaded guilty to molesting four elementary school boys between 1985 and 1989. The fathers of two of those boys said they, too, had been victims of Marks years ago.Court records cited 22 instances of molestation dating to 1956, most too old to prosecute. Prosecutor Richard Llewellyn said he has found 45 victims.