The former executive director of Boal Mansion Museum was sentenced Tuesday to serve 18 years in prison.

Christopher G. Lee, a former Harris Township Supervisor, was found guilty in March in U.S. Middle District Court on charges of receiving, possessing, and producing child pornography, as well as obstruction of justice. Lee also was ordered to pay $3,000 each to two victims depicted in the child pornography.

U.S. attorneys had argued for a 25 year sentence, noting among their arguments that Lee was charged in 2005 with indecent assault of two minor boys, a case for which Lee received Accelerated Rehabilitative Disposition and was not convicted. Prosecutors also cited the volume of child pornography in Lee’s possession, and “the depravity employed by the defendant in using children to create and produce his child pornography collection.”

Lee’s attorney Kyle Rude had argued for a 15-year sentence, the mandatory minimum, stating that a pattern of sexual abuse had not been proven, as well as Lee’s age, health and lack of criminal history.

Lee also will be required to register as a sex offender.

He was indicted in 2014 after a joint investigation by State College Police and the FBI found thousands of child pornography images in Boal Mansion in Boalsburg, where he resided. The obstruction charge stems from Lee’s attempt to have a relative retrieve and erase a phone seized by the FBI.

Lee, 68, still faces a second trial on charges that he enticed and transported two minors into the country with the intent to engage in sexual activity. Those charges were severed last fall from those for which he was found guilty when a judge ruled evidence in the child pornography case could not be admissible in the trial of enticement of a minor.

Judge Matthew Brann gave prosecutors until Nov. 10 to decide if they will move forward with those charges.