More than 500 Altoona Area High School seniors are set to turn their tassels tonight. The district will hold its 136th Commencement ceremony at Mansion Park Stadium beginning at 6:00PM. Dr. Thomas Foley – president of Mount Aloysius College – will address the 513 graduates. District spokeswoman Paula Foreman offers a profile of the graduating class. This evening’s ceremony will be televised live on the Access Channel.