A former county legislator has passed away. Gerry Bierker, who died Thursday, spent decades as a math teacher, and served as Clarkstown South High School principal. The Bardonia resident was active with Germonds Presbyterian Church in Bardonia and West Nyack Rotary. He served three four-year terms on the Legislature before retiring in 2012. His family is holding a private service for him, but it will be recorded and posted to the Germonds Presbyterian Church website. He was 81.