The Altoona woman resigned in February from Altoona Area High School, where she was hired in August 2010.
Prosecutors say she began the first relationship with a 15-year-old player in October 2010 and a second relationship with a 16-year-old player in October 2012.
Police say Hollingshead gave that girl a "promise ring," threatened suicide if the relationship ended, and sent a Valentine's Day card proclaiming the girl was the love of her life.